National Planning Association. (1956). Administration of bilateral technical cooperation, a statement by the NPA Special Policy Committee on Technical Cooperation. s.n.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Planning Association. Administration of Bilateral Technical Cooperation, a Statement by the NPA Special Policy Committee on Technical Cooperation. [Washington: s.n, 1956.
Παραπομπή σε μορφή MLA (9th εκδ.)National Planning Association. Administration of Bilateral Technical Cooperation, a Statement by the NPA Special Policy Committee on Technical Cooperation. s.n, 1956.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.