APA (7th ed.) Citation

Obee B. Bob. (2005). Upstream. Upper Intermediate: Workbook: class cas. 1. Newbury, Express Publishing, 2005.

Chicago Style (17th ed.) Citation

Obee B. Bob. Upstream. Upper Intermediate: Workbook: Class Cas. 1. Newbury, Express Publishing, 2005, 2005.

MLA (9th ed.) Citation

Obee B. Bob. Upstream. Upper Intermediate: Workbook: Class Cas. 1. Newbury, Express Publishing, 2005, 2005.

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