APA (7e ed.) Bronvermelding

Evans V. Virginia & Obee B. Bob. (2017). Upstream. B2+: Teacher's book (3rd ed.). Newbury, Express Publishing, 2017.

Chicago (17e ed.) Bronvermelding

Evans V. Virginia en Obee B. Bob. Upstream. B2+: Teacher's Book. 3rd ed. Newbury, Express Publishing, 2017, 2017.

MLA (9e ed.) Bronvermelding

Evans V. Virginia en Obee B. Bob. Upstream. B2+: Teacher's Book. 3rd ed. Newbury, Express Publishing, 2017, 2017.

Let op: Deze citaties zijn niet altijd 100% accuraat.