Παραπομπή σε μορφή APA (7η εκδ.)

Hopkins, J. W. (1989). The eradication of smallpox: Organizational learning and innovation in international health. Westview Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hopkins, Jack W. The Eradication of Smallpox: Organizational Learning and Innovation in International Health. Boulder, Colo.: Westview Press, 1989.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hopkins, Jack W. The Eradication of Smallpox: Organizational Learning and Innovation in International Health. Westview Press, 1989.