एपीए उद्धरण

Promersberger, W. J. (1979). Modern farm power. Reston publishers.

शिकागो स्टाइल उद्धरण

Promersberger, W J. Modern Farm Power. Virginia: Reston publishers, 1979.

एमएलए उद्धरण

Promersberger, W J. Modern Farm Power. Reston publishers, 1979.