Παραπομπή σε μορφή APA (7η εκδ.)

National Planning Association. Planning pamhplets ... National Economic and Social Planning Association.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Planning Association. Planning Pamhplets ... Washington, D.C: National Economic and Social Planning Association.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Planning Association. Planning Pamhplets ... National Economic and Social Planning Association.