Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Ribeiro, D. (1968). The civilizational process. Smithsonian Institution Press.

Chicago Citation Edition Citation

Ribeiro, Darcy. The Civilizational Process. Washington,: Smithsonian Institution Press, 1968.

MLA Citation Edition Citation

Ribeiro, Darcy. The Civilizational Process. Smithsonian Institution Press, 1968.