Dyfyniad APA

Marx,Karl, & Engels,Frederick. (1975). Collected works. Progress.

Dyfyniad Arddull Chicago

Marx,Karl, and Engels,Frederick. Collected Works. Moscow: Progress, 1975.

Dyfyniad MLA

Marx,Karl, and Engels,Frederick. Collected Works. Progress, 1975.

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