APA ציטוט

Grzimek, B. (1961). Serengeti shall not die. s.n.

Chicago Style (17th ed.) Citation

Grzimek, Bernhard. Serengeti Shall Not Die. s.n, 1961.

ציטוט MLA

Grzimek, Bernhard. Serengeti Shall Not Die. s.n, 1961.