Flanagan,Kathryn M. and Jason A. Lillegraven. (1986). Vertebrates, phylogeny and philosophy. University of Wyoming.
Cita Chicago Style (17a ed.)Flanagan,Kathryn M. and Jason A. Lillegraven. Vertebrates, Phylogeny and Philosophy. Wyoming - EEUU: University of Wyoming, 1986.
Cita MLA (8a ed.)Flanagan,Kathryn M. and Jason A. Lillegraven. Vertebrates, Phylogeny and Philosophy. University of Wyoming, 1986.
Precaución: Estas citas no son 100% exactas.