00456nam a2200121Ia 4500082002100000100006400021245015300085260003000238300001200268490004400280500000500324700000500329  a304.666bUn58.AA  aUnited Nations, Economic Commission for Asia & the Far East  aAssessment of acceptance and effectiveness of family planning methods; report of the meeting of the expert group held at Bangkok, June 11-21, 1968b  aNew YorkbThe auth.cn.d.  aiv,69p.  aAsian population studies seriesv no. 4  a  a