APA-viite (7. p.)

Christophersen, P. (1973). Second-language learning; myth and reality. Penguin Education.

Chicago-viite (17. p.)

Christophersen, Paul. Second-language Learning; Myth and Reality. Harmondsworth: Penguin Education, 1973.

MLA-viite (8. p.)

Christophersen, Paul. Second-language Learning; Myth and Reality. Penguin Education, 1973.