Dyfyniad APA

Sachs, J. D. (2015). The age of sustainable development. Columbia University Press.

Dyfyniad Arddull Chicago

Sachs, Jeffrey D. The Age of Sustainable Development. New York: Columbia University Press, 2015.

Dyfyniad MLA

Sachs, Jeffrey D. The Age of Sustainable Development. Columbia University Press, 2015.

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