000			00418nam a2200133 4500
020			_a0878340165
082			_a301.32072 _bSEL
100			_a Seltzer, William
245			_aDemographic data collection; : _ba summary of experience/
260			_aNew York: _bThe population council, _c1973
490			_aPopulation Council.; Occasional paper.
650			_aFertility, Human. Vital statistics. Demography.
942			_cBK
999			_c303252 _d303252