Παραπομπή σε μορφή APA (7η εκδ.)

World Health Organization. (2003). WHO guidelines: On good agricultural and collection practices (GACP) for medicinal plants. World Health Organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Health Organization. WHO Guidelines: On Good Agricultural and Collection Practices (GACP) for Medicinal Plants. Geneva: World Health Organization, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

World Health Organization. WHO Guidelines: On Good Agricultural and Collection Practices (GACP) for Medicinal Plants. World Health Organization, 2003.