Cita APA

VERMA, P., & AGARWAL, V. (1998). Concept of Evolution. Chand and Company Ltd..

Citación estilo Chicago

VERMA, P.S, and V.K AGARWAL. Concept of Evolution. New Delhi: Chand and Company Ltd., 1998.

Cita MLA

VERMA, P.S, and V.K AGARWAL. Concept of Evolution. Chand and Company Ltd., 1998.