Dyfyniad APA

Appleton, J. (2014). Values in sustainable development. Routledge.

Dyfyniad Arddull Chicago

Appleton, Jack. Values in Sustainable Development. Oxon, [England]: Routledge, 2014.

Dyfyniad MLA

Appleton, Jack. Values in Sustainable Development. Routledge, 2014.

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