Παραπομπή σε μορφή APA (7η εκδ.)

frisch, r. (1963). how to plan in international planning everything has its price , and economic policy making means a compromise among several desiderata. National Planning Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

frisch, ragnar. How to Plan in International Planning Everything Has Its Price , and Economic Policy Making Means a Compromise Among Several Desiderata. cairo: National Planning Institute, 1963.

Παραπομπή σε μορφή MLA (9th εκδ.)

frisch, ragnar. How to Plan in International Planning Everything Has Its Price , and Economic Policy Making Means a Compromise Among Several Desiderata. National Planning Institute, 1963.