000 00461nam a2200169Ia 4500
082 _a302.23
_bUNP
100 _aUNESCO
_9157491
245 _aPopulation communication
_b: research mass media and instructional materials
260 _aBangkok:
_bUNESCO,
_c1993.
300 _b119p.
_evol.2
500 _aPB
504 _aIncludes index
546 _aeng
650 _aPopulation Communication
_959205
650 _aCommunication Research
_9157492
942 _cBK
999 _c23375
_d23375