एपीए उद्धरण

(1968). Socio-economic models in geography. London: Methuen.

शिकागो स्टाइल उद्धरण

Socio-economic Models in Geography. London: Methuen, 1968.

एमएलए उद्धरण

Socio-economic Models in Geography. London: Methuen, 1968.