Παραπομπή σε μορφή APA (7η εκδ.)

World Health Organization. (2003). WHO guidelines on good agriculture and collection practices( GACP) for medical plants. World Health Organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Health Organization. WHO Guidelines on Good Agriculture and Collection Practices( GACP) for Medical Plants. Geneva: World Health Organization, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

World Health Organization. WHO Guidelines on Good Agriculture and Collection Practices( GACP) for Medical Plants. World Health Organization, 2003.