APA-referens (7:e uppl.)

Dellar, H., & Walkley, A. (2010). Upper intermediate outcomes: Student´s book. Heinle, Cengage Learning EMEA.

Chicago-referens (17:e uppl.)

Dellar, Hugh, och Andrew Walkley. Upper Intermediate Outcomes: Student´s Book. Hampshire: Heinle, Cengage Learning EMEA, 2010.

MLA-referens (9:e uppl.)

Dellar, Hugh, och Andrew Walkley. Upper Intermediate Outcomes: Student´s Book. Heinle, Cengage Learning EMEA, 2010.