World Health Organization & World Health Organization. (1998). Regulatory Situation of Herbal Medicines. World Health organization.
Style de citation Chicago (17e éd.)World Health Organization et World Health Organization. Regulatory Situation of Herbal Medicines. Geneva: World Health organization, 1998.
Style de citation MLA (8e éd.)World Health Organization et World Health Organization. Regulatory Situation of Herbal Medicines. World Health organization, 1998.
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