ebrary, Inc, & Zhu, Y. (2007). Natural products: Essential resources for human survival. World Scientific.
Chicago-viite (17. p.)ebrary, Inc, ja Yi-Zhun Zhu. Natural Products: Essential Resources for Human Survival. New Jersey: World Scientific, 2007.
MLA-viite (9. p.)ebrary, Inc, ja Yi-Zhun Zhu. Natural Products: Essential Resources for Human Survival. World Scientific, 2007.
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