Cita APA

Keller, E. A. (2011). Environmental geology (Ninth.). Pearson Prentice Hall.

Citación estilo Chicago

Keller, Edward A. Environmental Geology. Ninth. Upper Saddle River, N.J.: Pearson Prentice Hall, 2011.

Cita MLA

Keller, Edward A. Environmental Geology. Ninth. Pearson Prentice Hall, 2011.

Warning: These citations may not always be 100% accurate.