APA (7th ed.) Zitazioa
Roberts, M. B. V. (1986). Biology: A functional approach (4th ed.). Thomas Nelson & sons.
Chicago Style (17th ed.) Zitazioa
Roberts, Michael Bliss Vaughan. Biology: A Functional Approach. 4th ed. U.K: Thomas Nelson & sons, 1986.
MLA (9th ed.) Zitazioa
Roberts, Michael Bliss Vaughan. Biology: A Functional Approach. 4th ed. Thomas Nelson & sons, 1986.
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