APA način citiranja (7. izdanje)

Obee B. Bob & Evans V. Virginia. (2007). Upstream. Upper-Intermediate B2+: Student's Book. Newbury, Express Publishing, 2007.

Čikaški stil citiranja (17. izdanje)

Obee B. Bob i Evans V. Virginia. Upstream. Upper-Intermediate B2+: Student's Book. Newbury, Express Publishing, 2007, 2007.

MLA način citiranja (9. izdanje)

Obee B. Bob i Evans V. Virginia. Upstream. Upper-Intermediate B2+: Student's Book. Newbury, Express Publishing, 2007, 2007.