APA (7e ed.) Bronvermelding

Wicander, R., & Monroe, J. S. (2013). Historical geology: Evolution of earth and life through time (7th ed.). Brooks/Cole, Cengage Learning.

Chicago (17e ed.) Bronvermelding

Wicander, Reed, en James S. Monroe. Historical Geology: Evolution of Earth and Life Through Time. 7th ed. Australia: Brooks/Cole, Cengage Learning, 2013.

MLA (9e ed.) Bronvermelding

Wicander, Reed, en James S. Monroe. Historical Geology: Evolution of Earth and Life Through Time. 7th ed. Brooks/Cole, Cengage Learning, 2013.