Cao, V. S. (1998). Environment and bioresources of Vietnam: Present situation and solutions. Hà Nội: Thế giới.
शिकागो स्टाइल उद्धरणCao, Văn Sung. Environment and Bioresources of Vietnam: Present Situation and Solutions. Hà Nội: Thế giới, 1998.
एमएलए उद्धरणCao, Văn Sung. Environment and Bioresources of Vietnam: Present Situation and Solutions. Hà Nội: Thế giới, 1998.
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