Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.