000 00328nam a2200097 4500
245 _aEconomic and social progress in the second development decade
100 _aUnited Nation : Department of Economic and Social Affairs
260 _aNew York
_bUnited Nation Publication
_c1977
300 _aix,114p.; 28cm.
082 _a330.91724
_bUNI
999 _c46131
_d46131