Boston University. (2006). Esentials of Conservation Biology (Third edition.). Sinauer Asociates, inc publishers.
शिकागो स्टाइल उद्धरणBoston University. Esentials of Conservation Biology. Third edition. Sinauer Asociates, inc publishers, 2006.
एमएलए उद्धरणBoston University. Esentials of Conservation Biology. Third edition. Sinauer Asociates, inc publishers, 2006.
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