Cita APA (7a ed.)

American Institute of Professional Geologists. (1979). The Professional geologist. American Institute of Professional Geologists.

Cita Chicago Style (17a ed.)

American Institute of Professional Geologists. The Professional Geologist. [Golden, Colo.]: American Institute of Professional Geologists, 1979.

Cita MLA (9a ed.)

American Institute of Professional Geologists. The Professional Geologist. American Institute of Professional Geologists, 1979.