Report of the first international conference on educational research :
Report of the first international conference on educational research : Atlantic City, New Jersey, U.S.A.; february, 1956 /
- Paris: UNESCO, 1956.
- Educational studies and documents; 20 .
37.001.5 (100) =20 "1956" REP No.20.
37.001.5 (100) =20 "1956" REP No.20.