Παραπομπή APA

Verma, V. (1981). Textbook of sedimentary Petrology. International Book Distributors.

Παραπομπή Chicago Style

Verma, V.K. Textbook of Sedimentary Petrology. Dehra Dun: International Book Distributors, 1981.

Παραπομπή MLA

Verma, V.K. Textbook of Sedimentary Petrology. International Book Distributors, 1981.