Παραπομπή APA

Kewal, K. D., & Varma, J. (1948). Elementary economic theory (21.). S Chand & Co (Pvt) Ltd.

Παραπομπή Chicago Style

Kewal, Krishan Dewett, και J.D Varma. Elementary Economic Theory. 21. New Delhi: S Chand & Co (Pvt) Ltd, 1948.

Παραπομπή MLA

Kewal, Krishan Dewett, και J.D Varma. Elementary Economic Theory. 21. S Chand & Co (Pvt) Ltd, 1948.