Focus 5 second edition : workbook B2+ / C1

.

Brayshaw, Daniel

;

Siuta, Tomasz

;

Trapnell, Beata

;

Russell, Dean

. , 2021. ISBN: 9781292288406. (M) Monografía

Focus 4 : student's book

.

Edwards, Lynda

;

Kay, Sue

;

Jones, Vaughan

;

Brayshaw, Daniel

;

Trapnell, Beata

;

Russell, Dean

. (Always learning). 1a. ed. , 2016. ISBN: 9781447998310. (M) Monografía

Focus 4 second edition : student's book B2 / B2+

.

Kay, Sue

;

Jones, Vaughan

;

Brayshaw, Daniel

;

Michalowski, Bartosz

;

Trapnell, Beata

;

Russell, Dean

. 2a ed. , 2020. ISBN: 9781292301921. (M) Monografía

Focus 5 second edition : student's book B2+ / C1

.

Kay, Sue

;

Jones, Vaughan

;

Berlis, Mónica

;

Jones, Heather

;

Brayshaw, Daniel

;

Russell, Dean

;

Davies, Amanda

. 2a ed. , 2020. ISBN: 9781292390574. (M) Monografía