Dyfyniad APA

Schmuck, P., & Schultz, P. W. (2002). Psychology of sustainable development. Kluwer Academic.

Dyfyniad Arddull Chicago

Schmuck, Peter, and P. Wesley Schultz. Psychology of Sustainable Development. Boston: Kluwer Academic, 2002.

Dyfyniad MLA

Schmuck, Peter, and P. Wesley Schultz. Psychology of Sustainable Development. Kluwer Academic, 2002.

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