Cita APA (7th ed.)

Monroe, J. S., & Wicander, R. (2009). The changing Earth: Exploring geology and evolution (5th ed.). Brooks/Cole, Cengage Learning.

Cita Chicago (17th ed.)

Monroe, James S., i Reed Wicander. The Changing Earth: Exploring Geology and Evolution. 5th ed. Belmont, CA: Brooks/Cole, Cengage Learning, 2009.

Cita MLA (9th ed.)

Monroe, James S., i Reed Wicander. The Changing Earth: Exploring Geology and Evolution. 5th ed. Brooks/Cole, Cengage Learning, 2009.