Παραπομπή APA

Gokhale, K. (2005). Principles of engineering geology. B S Publications.

Παραπομπή Chicago Style

Gokhale, KVGK. Principles of Engineering Geology. Hyderabad: B S Publications, 2005.

Παραπομπή MLA

Gokhale, KVGK. Principles of Engineering Geology. B S Publications, 2005.