APA (7th ed.) Citation

Sundharan, K. (1975). Principles of economics (11th.). Vikas.

Chicago Style (17th ed.) Citation

Sundharan, K. Principles of Economics. 11th. Delhi: Vikas, 1975.

MLA (9th ed.) Citation

Sundharan, K. Principles of Economics. 11th. Vikas, 1975.