Cita APA (7th ed.)

Kehew, A. E. (2006). Geology for engineers and environmental scientists (3a. ed.). Pearson Education Inc.

Cita Chicago (17th ed.)

Kehew, Alan E. Geology for Engineers and Environmental Scientists. 3a. ed. Upper Saddle River: Pearson Education Inc, 2006.

Cita MLA (9th ed.)

Kehew, Alan E. Geology for Engineers and Environmental Scientists. 3a. ed. Pearson Education Inc, 2006.