Παραπομπή σε μορφή APA (7η εκδ.)
Vanden Bergh, L. J. (1921). On the trail of the pigmies: An anthropological exploration under the cooperation of the American Museum of Natural History and American Universities. The James A. McCann Company.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Vanden Bergh, Leonard John. On the Trail of the Pigmies: An Anthropological Exploration Under the Cooperation of the American Museum of Natural History and American Universities. New York: The James A. McCann Company, 1921.
Παραπομπή σε μορφή MLA (9th εκδ.)
Vanden Bergh, Leonard John. On the Trail of the Pigmies: An Anthropological Exploration Under the Cooperation of the American Museum of Natural History and American Universities. The James A. McCann Company, 1921.
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