Cita APA (7th ed.)

Grzimek, W., & Hoffmann, R. (1989). Waldemar Grzimek: Raimund Hoffmann. Henschel.

Cita Chicago (17th ed.)

Grzimek, Waldemar, i Raimund Hoffmann. Waldemar Grzimek: Raimund Hoffmann. Berlin: Henschel, 1989.

Cita MLA (8th ed.)

Grzimek, Waldemar, i Raimund Hoffmann. Waldemar Grzimek: Raimund Hoffmann. Henschel, 1989.