एपीए उद्धरण

Lewis-Beck, M. S. (1990). Experimental design and methods. Sage.

शिकागो स्टाइल उद्धरण

Lewis-Beck, Michael S. Experimental Design and Methods. London: Sage, 1990.

एमएलए उद्धरण

Lewis-Beck, Michael S. Experimental Design and Methods. Sage, 1990.