Lua APA (7ú heag.)

Holmes, S. J. (1930). The biology of the frog (4th rev. ed.). Macmillan.

Lua i Stíl Chicago (17ú heag.)

Holmes, Samuel J. The Biology of the Frog. 4th rev. ed. New York: Macmillan, 1930.

Lua MLA (8ú heag.)

Holmes, Samuel J. The Biology of the Frog. 4th rev. ed. Macmillan, 1930.

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