APA-referens (7:e uppl.)

Clandfield, L., & Jeffries, A. (2010). Global :: Pre-Intermediate coursebook (1a. ed.). Macmillan Education.

Chicago-referens (17:e uppl.)

Clandfield, Lindsay, och Amanda Jeffries. Global :: Pre-Intermediate Coursebook. 1a. ed. Oxford: Macmillan Education, 2010.

MLA-referens (9:e uppl.)

Clandfield, Lindsay, och Amanda Jeffries. Global :: Pre-Intermediate Coursebook. 1a. ed. Macmillan Education, 2010.