Dyfyniad APA

Mill, J. S. (2004). Principles of Political Economy: With Some of Their Applications to Social Philosophy. Hackett Publishing Company, Inc.

Dyfyniad Arddull Chicago

Mill, J. S. Principles of Political Economy: With Some of Their Applications to Social Philosophy. Indianapolis/Cambridge: Hackett Publishing Company, Inc, 2004.

Dyfyniad MLA

Mill, J. S. Principles of Political Economy: With Some of Their Applications to Social Philosophy. Hackett Publishing Company, Inc, 2004.

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