Style de citation APA (7e éd.)

Erneholm, I. (1948). Cacao production of South America: Historical development and present geographical distribution.

Style de citation Chicago (17e éd.)

Erneholm, Ivar. Cacao Production of South America: Historical Development and Present Geographical Distribution. Gothenburg, 1948.

Style de citation MLA (8e éd.)

Erneholm, Ivar. Cacao Production of South America: Historical Development and Present Geographical Distribution. 1948.