00530nam a2200181 a 4500041000800000082001700008100002200025110006300047245006600110260003500176300002500211650002700236650001400263650001200277650001400289650002200303700002300325  aeng  a304.66bM217  aChandrasekaran, C  aInternational Union for the Scientific Study of Population  aMeasuring the effect of family planning programs on fertility  aDolhainbOrdina Editionsc1975  a570 pbfigs., tablas  aPLANIFICACION FAMILIAR  aNATALIDAD  aCONTROL  aPOBLACION  aDEMOGRAFIA SOCIAL  aHermalin, Albert I