Cita APA (7th ed.)

Raup, D. M., & Stanley, S. M. (1971). Principles of paleontology. W. H. Freeman.

Cita Chicago (17th ed.)

Raup, David M., i Steven M. Stanley. Principles of Paleontology. San Francisco: W. H. Freeman, 1971.

Cita MLA (9th ed.)

Raup, David M., i Steven M. Stanley. Principles of Paleontology. W. H. Freeman, 1971.