Cita APA (7th ed.)

Chernicoff, S. (1999). Geology: An introduction to physical geology (2nd ed.). Houghton Mifflin.

Cita Chicago (17th ed.)

Chernicoff, Stanley. Geology: An Introduction to Physical Geology. 2nd ed. Boston: Houghton Mifflin, 1999.

Cita MLA (9th ed.)

Chernicoff, Stanley. Geology: An Introduction to Physical Geology. 2nd ed. Houghton Mifflin, 1999.