Opportunities Upper-Intermediate : student's book

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. 1a. ed.; 7a. imp. , 2005. ISBN: 0582419735. (M) Monografía

Opportunities Upper-Intermediate : language powerbook

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. 1a. ed.; 6a. imp. , 2004. ISBN: 0582419743. (M) Monografía

New Opportunities : Elementary. CD 1

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Elementary. CD 2

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Elementary. CD 3

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Pre-intermediate. CD 1

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Pre-intermediate. CD 2

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Pre-intermediate. CD 3

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Intermediate. CD 1

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Intermediate. CD 2

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Intermediate. CD 3

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Upper - Intermediate. CD 1

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Upper - Intermediate. CD 2

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Upper - Intermediate. CD 3

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

New Opportunities : Upper - Intermediate. CD 4

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. (M) 

Opportunities Upper-Intermediate : language powerbook

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. 4a. imp. , 2003. ISBN: 0582419743. (M) Monografía

New Opportunities Intermediate : student's book

.

Harris, Michel

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). 2a. ed. , 2006. ISBN: 0582854156. (M) Monografía

New Opportunities Elementary : student's book

.

Harris, Michel

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). 2a. ed. , 2006. ISBN: 0582854113. (M) Monografía

New Opportunities Pre-intermediate : student's book

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). 2a. ed. , 2006. ISBN: 0582854199. (M) Monografía

Opportunities Upper-Intermediate : student's book

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. 1a. ed.; 6a. impr. , 2004. ISBN: 0582419735. (M) Monografía

New Opportunities : Elementary Test Master

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). , 2006. ISBN: 1405841362. (M) 

New Opportunities Elementary : student's book

.

Harris, Michel

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). 4a. ed. , 2007. ISBN: 9780582854116. (M) Monografía

New Opportunities Pre-intermediate : student's book

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). 2a. ed. , 2006. ISBN: 0582854199. (M) Monografía

New Opportunities Pre-intermediate : student's book

.

Harris, Michael

;

Mower, David

;

Sikorzynska, Anna

. (Education for life). 7a. ed. , 2008. ISBN: 0582854199. (M) Monografía

New Opportunities Pre- intermediate : language powerbook

.

Reilly, Patricia

;

[et.al.]

;

Sikorzynska, Anna

;

Mrozowska, Hanna

. (Education for life). 2a.ed. , 2006. ISBN: 0582854180. (M) Monografía