Walker, W. F. J., & Liem, K. F. (1994). Functional anatomy of the vertebrates: An evolutionary perspective (2nd ed.). Saunders College Pub.
Chicago-viite (17. p.)Walker, Warren F. Jr, ja Karel F. Liem. Functional Anatomy of the Vertebrates: An Evolutionary Perspective. 2nd ed. Fort Worth, Tex: Saunders College Pub, 1994.
MLA-viite (9. p.)Walker, Warren F. Jr, ja Karel F. Liem. Functional Anatomy of the Vertebrates: An Evolutionary Perspective. 2nd ed. Saunders College Pub, 1994.
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