Cita APA (7a ed.)

Beerbower, J. R. (1971). Field guide to fossils. Houghton Mifflin.

Cita Chicago Style (17a ed.)

Beerbower, James R. Field Guide to Fossils. Boston: Houghton Mifflin, 1971.

Cita MLA (8a ed.)

Beerbower, James R. Field Guide to Fossils. Houghton Mifflin, 1971.