एपीए उद्धरण

Jacob, M. (1974). Dual theory. North-Holland Publishing Company.

शिकागो स्टाइल उद्धरण

Jacob, M. Dual Theory. Amsterdam: North-Holland Publishing Company, 1974.

एमएलए उद्धरण

Jacob, M. Dual Theory. North-Holland Publishing Company, 1974.