ebrary, Inc, Knight, R. L., & Riedel, S. (2002). Aldo Leopold and the ecological conscience. Oxford University Press.
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Dyfyniad Arddull Chicago
ebrary, Inc, Richard L. Knight, and Suzanne Riedel. Aldo Leopold and the Ecological Conscience. Oxford ; New York: Oxford University Press, 2002.
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Dyfyniad MLA
ebrary, Inc, et al. Aldo Leopold and the Ecological Conscience. Oxford University Press, 2002.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.