एपीए उद्धरण

Engels. (1955). The wages system: Articles from the labour standard. Progress.

शिकागो स्टाइल उद्धरण

Engels. The Wages System: Articles from the Labour Standard. Moscow: Progress, 1955.

एमएलए उद्धरण

Engels. The Wages System: Articles from the Labour Standard. Progress, 1955.