Παραπομπή σε μορφή APA (7η εκδ.)

World Health Organization. Study Group. (1997). Improving the performance of health centres in district health systems: Report of a WHO Study Group. World Health Organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Health Organization. Study Group. Improving the Performance of Health Centres in District Health Systems: Report of a WHO Study Group. Geneva: World Health Organization, 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

World Health Organization. Study Group. Improving the Performance of Health Centres in District Health Systems: Report of a WHO Study Group. World Health Organization, 1997.