APA (7th ed.) Zitazioa

Parker, T. J. A Text- book of zoology 7thed.

Chicago Style (17th ed.) Zitazioa

Parker, T. Jeffer. A Text- Book of Zoology 7thed.

MLA (9th ed.) Zitazioa

Parker, T. Jeffer. A Text- Book of Zoology 7thed.