Cita APA (7th ed.)

Raup,David M, & Stanley, S. M. (2004). Principles of paleontology (2nd ed.). CBS PUBlishers.

Cita Chicago (17th ed.)

Raup,David M, i Steven M. Stanley. Principles of Paleontology. 2nd ed. New Delhi: CBS PUBlishers, 2004.

Cita MLA (9th ed.)

Raup,David M, i Steven M. Stanley. Principles of Paleontology. 2nd ed. CBS PUBlishers, 2004.