APA (7th ed.) Zitazioa
Bowman, R. I. (1961). Morphological Differentiation and adaptation in the Galapagos Finches. Univ. of California Press.
Chicago Style (17th ed.) Zitazioa
Bowman, Robert I. Morphological Differentiation and Adaptation in the Galapagos Finches. Berkeley: Univ. of California Press, 1961.
MLA (9th ed.) Zitazioa
Bowman, Robert I. Morphological Differentiation and Adaptation in the Galapagos Finches. Univ. of California Press, 1961.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.