Perrin, W. F. (1975). Variation of spotted and spinner porpoise (Genus Stenella) in the Eastern Tropical Pacific and Hawaii. University of California Press.
Citace podle Chicago (17th ed.)Perrin, William F. Variation of Spotted and Spinner Porpoise (Genus Stenella) in the Eastern Tropical Pacific and Hawaii. Berkeley, California: University of California Press, 1975.
Citace podle MLA (9th ed.)Perrin, William F. Variation of Spotted and Spinner Porpoise (Genus Stenella) in the Eastern Tropical Pacific and Hawaii. University of California Press, 1975.
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