APA Edition Citation

Sundharam, K. P. M. V. (1979). Principles of economics (13 edition.). Vikas Publishing House Pvt. Ltd.

Chicago Edition Citation

Sundharam, K P M; Vaish. Principles of Economics. 13 edition. New Delhi: Vikas Publishing House Pvt. Ltd, 1979.

MLA Edition Citation

Sundharam, K P M; Vaish. Principles of Economics. 13 edition. Vikas Publishing House Pvt. Ltd, 1979.