Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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