APA-referens (7:e uppl.)

Sayer M. Mike, Dellar H. Hugh, & Walkley A. Andrew. (2020). Teacher's book; Outcomes. Intermediate. 2020.

Chicago-referens (17:e uppl.)

Sayer M. Mike, Dellar H. Hugh, och Walkley A. Andrew. Teacher's Book; Outcomes. Intermediate. 2020, 2020.

MLA-referens (9:e uppl.)

Sayer M. Mike, et al. Teacher's Book; Outcomes. Intermediate. 2020, 2020.