APA (7th ed.) Citation

Obee B. Bob & Evans V. Virginia. (2008). Upstream. Upper-Intermediate B2+: Workbook: Student's Book. Newbury, Express Publishing, 2008.

Chicago Style (17th ed.) Citation

Obee B. Bob and Evans V. Virginia. Upstream. Upper-Intermediate B2+: Workbook: Student's Book. Newbury, Express Publishing, 2008, 2008.

MLA (9th ed.) Citation

Obee B. Bob and Evans V. Virginia. Upstream. Upper-Intermediate B2+: Workbook: Student's Book. Newbury, Express Publishing, 2008, 2008.

Warning: These citations may not always be 100% accurate.