Palmer, J. A. (2001). Fifty key thinkers on the environment. Routledge.
Tohutoru Kātū Chicago (17th ed.)Palmer, Joy A. Fifty Key Thinkers on the Environment. London: Routledge, 2001.
Tohutoro MLA (9th ed.)Palmer, Joy A. Fifty Key Thinkers on the Environment. Routledge, 2001.
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