HolmesS J. (1960). The biology of the frog (4th ed.). McMillan.
Chicago Style aipamenaHolmesS J. The Biology of the Frog. 4th ed. McMillan, 1960.
MLA aipamenaHolmesS J. The Biology of the Frog. 4th ed. McMillan, 1960.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.