Dyfyniad APA

Kelle,V, & Kovalson,M. (1973). Historical materialism: Outline of Marxist theory of society. Progress.

Dyfyniad Arddull Chicago

Kelle,V, and Kovalson,M. Historical Materialism: Outline of Marxist Theory of Society. Moscow: Progress, 1973.

Dyfyniad MLA

Kelle,V, and Kovalson,M. Historical Materialism: Outline of Marxist Theory of Society. Progress, 1973.

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