APA (7th ed.) Citation

Obee B. Bob & Evans V. Virginia. (2007). Upstream. Upper-intermediate B2+: Class CD 1. Newbury, Express Publishing, 2007.

Chicago Style (17th ed.) Citation

Obee B. Bob and Evans V. Virginia. Upstream. Upper-intermediate B2+: Class CD 1. Newbury, Express Publishing, 2007, 2007.

MLA (9th ed.) Citation

Obee B. Bob and Evans V. Virginia. Upstream. Upper-intermediate B2+: Class CD 1. Newbury, Express Publishing, 2007, 2007.

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