Παραπομπή APA

Parbin Singh. (1998). Textbook of engineering & general geology (6th ed.). S.K.Kataria.

Παραπομπή Chicago Style

Parbin Singh. Textbook of Engineering & General Geology. 6th ed. Delhi: S.K.Kataria, 1998.

Παραπομπή MLA

Parbin Singh. Textbook of Engineering & General Geology. 6th ed. S.K.Kataria, 1998.