APA način citiranja

Kummel, B. (1961). History of the earth: :introduction to histrocal geology. Eurasia publishing.

Čikaški stil citiranja

Kummel, Bernhard. History of the Earth: :introduction to Histrocal Geology. New delhi: Eurasia publishing, 1961.

MLA način citiranja

Kummel, Bernhard. History of the Earth: :introduction to Histrocal Geology. Eurasia publishing, 1961.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.