00571cam a2200205 a 450005000200000010000160002024500910003626000630012730000120019049000250020265000120022765000120023965000120025165000130026365000130027665000130028965000210030265000210032365000210034400aHB1323.I42 19711 aA. S. David10aInfant and child mortality and fertility behaviourbpopulation planning and statistics  anorth carolinabInternational Statistical Institute,c1971  a68 p. ;1 aScientific reports ; 0aInfants 0aInfants 0aInfants 0aChildren 0aChildren 0aChildren 0aFertility, Human 0aFertility, Human 0aFertility, Human