Dyfyniad APA

Elliott, J. A. (2013). An introduction to sustainable development (4th edition.). Routledge.

Dyfyniad Arddull Chicago

Elliott, Jennifer A. An Introduction to Sustainable Development. 4th edition. New York ; London: Routledge, 2013.

Dyfyniad MLA

Elliott, Jennifer A. An Introduction to Sustainable Development. 4th edition. Routledge, 2013.

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