Tohutoro APA (7th ed.)
Uekötter, F., & Engels, J. I. (2010). The turning points of environmental history. University of Pittsburgh Press.
Tohutoru Kātū Chicago (17th ed.)
Uekötter, Frank, me Jens Ivo Engels. The Turning Points of Environmental History. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2010.
Tohutoro MLA (9th ed.)
Uekötter, Frank, me Jens Ivo Engels. The Turning Points of Environmental History. University of Pittsburgh Press, 2010.
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