Wolrd Health Organization & World Health Organization. (2007). WHO monographs on selected medicinal plants. World Health Organization.
Citazione stile Chigago Style (17a edizione)Wolrd Health Organization e World Health Organization. WHO Monographs on Selected Medicinal Plants. Geneva: World Health Organization, 2007.
Citatione MLA (8a ed.)Wolrd Health Organization e World Health Organization. WHO Monographs on Selected Medicinal Plants. World Health Organization, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.