APA Edition Citation

Sundharam, K. P. M., & Vaish, M. C. (1979). Principles of economics.

Chicago Edition Citation

Sundharam, K P M., and M C. Vaish. Principles of Economics. New Delhi, Vikas Publishing, 1979.

MLA Edition Citation

Sundharam, K P M., and M C. Vaish. Principles of Economics. 1979.