Cita APA (7th ed.)

POUGH, F. H., JANIS, C., & HEISER, J. B. (1999). Vertebrate life.-- Ed.5. Prentice Hall.

Cita Chicago (17th ed.)

POUGH, F. Harvey, Christine JANIS, i John B. HEISER. Vertebrate Life.-- Ed.5. New Jersey: Prentice Hall, 1999.

Cita MLA (9th ed.)

POUGH, F. Harvey, et al. Vertebrate Life.-- Ed.5. Prentice Hall, 1999.