एपीए उद्धरण

Optner, S. L. (1975). Systems analysis for business management (3rd ed.).

शिकागो स्टाइल उद्धरण

Optner, Stanford L. Systems Analysis for Business Management. 3rd ed. 1975.

एमएलए उद्धरण

Optner, Stanford L. Systems Analysis for Business Management. 3rd ed. 1975.