Dyfyniad APA

Yevgenia Stepanova & Schneierson Vic. (1988). Frederick Engels: A short biography. Progress.

Dyfyniad Arddull Chicago

Yevgenia Stepanova and Schneierson Vic. Frederick Engels: A Short Biography. Moscow: Progress, 1988.

Dyfyniad MLA

Yevgenia Stepanova and Schneierson Vic. Frederick Engels: A Short Biography. Progress, 1988.

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