George C. Kent, R. K. C. Comparative anatomy of the vertebrates. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)George C. Kent, Robert K. Carr. Comparative Anatomy of the Vertebrates. McGraw-Hill.
Lua MLA (8ú heag.)George C. Kent, Robert K. Carr. Comparative Anatomy of the Vertebrates. McGraw-Hill.
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