Cita APA

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

Citación estilo Chicago

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

Cita MLA

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