Wolrd Health Organization & World Health Organization. (2007). WHO monographs on selected medicinal plants. World Health Organization.
Chicago-viite (17. p.)Wolrd Health Organization ja World Health Organization. WHO Monographs on Selected Medicinal Plants. Geneva: World Health Organization, 2007.
MLA-viite (8. p.)Wolrd Health Organization ja World Health Organization. WHO Monographs on Selected Medicinal Plants. World Health Organization, 2007.
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