APA (7e ed.) Bronvermelding

World Health Organization. (1998). Guidelines for the appropriate use of herbal medicines. World Health organization.

Chicago (17e ed.) Bronvermelding

World Health Organization. Guidelines for the Appropriate Use of Herbal Medicines. Manila: World Health organization, 1998.

MLA (8e ed.) Bronvermelding

World Health Organization. Guidelines for the Appropriate Use of Herbal Medicines. World Health organization, 1998.