Cita APA (7a ed.)

Evans V. Virginia & Dooley J. Jenny. (2002). Upstream Proficiency: Workbook. Student's Book. Newbury, Express Publishing, 2002.

Cita Chicago Style (17a ed.)

Evans V. Virginia y Dooley J. Jenny. Upstream Proficiency: Workbook. Student's Book. Newbury, Express Publishing, 2002, 2002.

Cita MLA (9a ed.)

Evans V. Virginia y Dooley J. Jenny. Upstream Proficiency: Workbook. Student's Book. Newbury, Express Publishing, 2002, 2002.