APA (7e ed.) Bronvermelding

Grass, G., & Woods, J. E. (1989). Show your tongue. Harcourt Brace Jovanovich.

Chicago (17e ed.) Bronvermelding

Grass, Gunter, en John E. Woods. Show Your Tongue. San Diego: Harcourt Brace Jovanovich, 1989.

MLA (9e ed.) Bronvermelding

Grass, Gunter, en John E. Woods. Show Your Tongue. Harcourt Brace Jovanovich, 1989.