Evans V. Virginia & Dooley J. Jenny. (2011). Upstream. Pre-Intermediate B1: Workbook: Student's Book (6th ed.). Newbury, Express Publishing, 2011.
Chicago Style (17th ed.) CitationEvans V. Virginia and Dooley J. Jenny. Upstream. Pre-Intermediate B1: Workbook: Student's Book. 6th ed. Newbury, Express Publishing, 2011, 2011.
MLA (9th ed.) CitationEvans V. Virginia and Dooley J. Jenny. Upstream. Pre-Intermediate B1: Workbook: Student's Book. 6th ed. Newbury, Express Publishing, 2011, 2011.
Warning: These citations may not always be 100% accurate.