Dyfyniad APA

Freedman, R., & Schwartz, H. (1961). Marx on Economics. Harmondsworth: Penguin Books.

Dyfyniad Arddull Chicago

Freedman, Robert, and Harry Schwartz. Marx on Economics. Harmondsworth: Penguin Books, 1961.

Dyfyniad MLA

Freedman, Robert, and Harry Schwartz. Marx on Economics. Harmondsworth: Penguin Books, 1961.

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