Não informado. (1957). International Review of Administrative Sciences. International Institute of Administrative Science.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. International Review of Administrative Sciences. Bruxelles: International Institute of Administrative Science, 1957.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. International Review of Administrative Sciences. International Institute of Administrative Science, 1957.
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