एपीए उद्धरण

Purvis,Martin, & Grainger,Alan. (2005). Exploring sustainable development: Geographical perspectives. Earthscan.

शिकागो स्टाइल उद्धरण

Purvis,Martin, और Grainger,Alan. Exploring Sustainable Development: Geographical Perspectives. London: Earthscan, 2005.

एमएलए उद्धरण

Purvis,Martin, और Grainger,Alan. Exploring Sustainable Development: Geographical Perspectives. Earthscan, 2005.