00289nam a2200109Ia 4500082002600000100001900026245006100045260004800106300001500154500000500169700000500174  a304.62015118bP771.MM  aPollard, J. H.  aMathematical models for the growth of human populationb  aCambridgebCambridge University Pressc1973  axii, 186p.  a  a