Pough, F. H., Heiser, J. B., & Janis, C. M. (2009). Vertebrate life (Eighth edition.). Benjamin Cummings.
Cita Chicago Style (17a ed.)Pough, F. Harvey, John B. Heiser, y Christine M. Janis. Vertebrate Life. Eighth edition. San Francisco: Benjamin Cummings, 2009.
Cita MLA (9a ed.)Pough, F. Harvey, et al. Vertebrate Life. Eighth edition. Benjamin Cummings, 2009.
Precaución: Estas citas no son 100% exactas.