APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.