Citazione APA

Packard, A. S. (1883). Zoology for high schools and colleges (4th ed., rev.). Henry Holt and Co..

Stile di citazione Chicago

Packard, A. S. Zoology for High Schools and Colleges. 4th ed., rev. New York: Henry Holt and Co., 1883.

Citazione MLA

Packard, A. S. Zoology for High Schools and Colleges. 4th ed., rev. Henry Holt and Co., 1883.