एपीए उद्धरण

Freeman,Richard B. (1979). Labor economics (2.). Prentice Hall,INC.

शिकागो स्टाइल उद्धरण

Freeman,Richard B. Labor Economics. 2. London: Prentice Hall,INC, 1979.

एमएलए उद्धरण

Freeman,Richard B. Labor Economics. 2. Prentice Hall,INC, 1979.