APA引文

Sundharam, K. P. M., & Vaish, M. C. (1959). Principles of economics.

Chicago Edition Citation

Sundharam, K P M., and M C. Vaish. Principles of Economics. Agra, Ratan Prakashan Mandir Educational & University Publishers, 1959.

MLA引文

Sundharam, K P M., and M C. Vaish. Principles of Economics. 1959.