Sax, J. L. (1971). Defending the environment: A strategy for citizen action. Alfred A Knopf.
शिकागो स्टाइल उद्धरणSax, Joseph L. Defending the Environment: A Strategy for Citizen Action. New York: Alfred A Knopf, 1971.
एमएलए उद्धरणSax, Joseph L. Defending the Environment: A Strategy for Citizen Action. Alfred A Knopf, 1971.
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