Style de citation APA

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

Style de citation Chicago

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

Style de citation MLA

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

Attention : ces citations peuvent ne pas être correctes à 100%.