Orr, R. T. (1966). Vertebrate biology (2nd ed.). W. B. Saunders.
Chicago Style (17th ed.) CitationOrr, Robert T. Vertebrate Biology. 2nd ed. Philadelphia: W. B. Saunders, 1966.
MLA (9th ed.) CitationOrr, Robert T. Vertebrate Biology. 2nd ed. W. B. Saunders, 1966.
Warning: These citations may not always be 100% accurate.