Cita APA (7th ed.)

Rahn, P. H. (1996). Engineering geology: An environmental approach (2nd ed.). PTR Prentice Hall.

Cita Chicago (17th ed.)

Rahn, Perry H. Engineering Geology: An Environmental Approach. 2nd ed. Englewood Cliffs, N.J: PTR Prentice Hall, 1996.

Cita MLA (9th ed.)

Rahn, Perry H. Engineering Geology: An Environmental Approach. 2nd ed. PTR Prentice Hall, 1996.