एपीए उद्धरण

Williamson, M. (1972). Analysis of geological populations. Unwin.

शिकागो स्टाइल उद्धरण

Williamson, Mark. Analysis of Geological Populations. London: Unwin, 1972.

एमएलए उद्धरण

Williamson, Mark. Analysis of Geological Populations. Unwin, 1972.