एपीए उद्धरण

Witt,Ulrich. (1993). Evolution in markets and institutions. Physica-Verlag.

शिकागो स्टाइल उद्धरण

Witt,Ulrich. Evolution in Markets and Institutions. Germany: Physica-Verlag, 1993.

एमएलए उद्धरण

Witt,Ulrich. Evolution in Markets and Institutions. Physica-Verlag, 1993.