James, G. A. (2013). Ecology is permanent economy: The activism and environmental philosophy of Sunderlal Bahuguna. State University of New York Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)James, George Alfred. Ecology Is Permanent Economy: The Activism and Environmental Philosophy of Sunderlal Bahuguna. Albany: State University of New York Press, 2013.
MLA -ийн эшлэл (9 дэх хэвлэлт)James, George Alfred. Ecology Is Permanent Economy: The Activism and Environmental Philosophy of Sunderlal Bahuguna. State University of New York Press, 2013.
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