Cita APA (7th ed.)

Foley, D., McKenzie, G. D., & Utgard, R. O. (1999). Investigations in environmental geology (2nd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Foley, Duncan, Garry D. McKenzie, i Russell O. Utgard. Investigations in Environmental Geology. 2nd ed. Upper Saddle River, NJ: Prentice Hall, 1999.

Cita MLA (9th ed.)

Foley, Duncan, et al. Investigations in Environmental Geology. 2nd ed. Prentice Hall, 1999.