एपीए उद्धरण

Shephard,Ronald W. (1981). Cost and production functions. Springer - Verlag.

शिकागो स्टाइल उद्धरण

Shephard,Ronald W. Cost and Production Functions. Berlin: Springer - Verlag, 1981.

एमएलए उद्धरण

Shephard,Ronald W. Cost and Production Functions. Springer - Verlag, 1981.