एपीए उद्धरण

Chapman, W. A. J. (1972). Senior workshop calculations. ELBS.

शिकागो स्टाइल उद्धरण

Chapman, W A J. Senior Workshop Calculations. London: ELBS, 1972.

एमएलए उद्धरण

Chapman, W A J. Senior Workshop Calculations. ELBS, 1972.