Chiras, D. D. (2005). Natural resource conservation: Management for a sustainable future. New Jersey: Pearson Prentice Hall.
शिकागो स्टाइल उद्धरणChiras, Daniel D. Natural Resource Conservation: Management for a Sustainable Future. New Jersey: Pearson Prentice Hall, 2005.
एमएलए उद्धरणChiras, Daniel D. Natural Resource Conservation: Management for a Sustainable Future. New Jersey: Pearson Prentice Hall, 2005.
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