एपीए उद्धरण

Chorley, R. J. (1972). Spatial analysis in geomorphology. Methen.

शिकागो स्टाइल उद्धरण

Chorley, Richard J. Spatial Analysis in Geomorphology. London: Methen, 1972.

एमएलए उद्धरण

Chorley, Richard J. Spatial Analysis in Geomorphology. Methen, 1972.