Buchsbaum, R. (1948). Animals without backbones: An introduction to the invertebrates (2nd ed.).
Chicago Style aipamenaBuchsbaum, Ralph. Animals Without Backbones: An Introduction to the Invertebrates. 2nd ed. 1948.
MLA aipamenaBuchsbaum, Ralph. Animals Without Backbones: An Introduction to the Invertebrates. 2nd ed. 1948.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.