Cita APA (7th ed.)

Montgomery, C. W. (1987). Physical geology. Va. C. Brown.

Cita Chicago (17th ed.)

Montgomery, Carla W. Physical Geology. Dubuque: Va. C. Brown, 1987.

Cita MLA (9th ed.)

Montgomery, Carla W. Physical Geology. Va. C. Brown, 1987.