Dyfyniad APA

Seth, M. (1997). Principles of economics (31st ed.). Lakshmi Narain Agarwal.

Dyfyniad Arddull Chicago

Seth, M.L. Principles of Economics. 31st ed. Agra: Lakshmi Narain Agarwal, 1997.

Dyfyniad MLA

Seth, M.L. Principles of Economics. 31st ed. Lakshmi Narain Agarwal, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.