00501nam a2200133Ia 4500008004100000020001800041040001700059082002700076100002600103245008800129260003300217300002000250650009700270190328s9999||||xx |||||||||||||| ||und||  a0-89232-018-4  aNITILcNITIL  221sta301.32072bS594R  aSimon, Julian L (Ed.) 0aResearch in population economicsban annual compilation of researchcJulian L Simon  aConnecticutbJai Pressc1978  av.1 (ix, 347p.)  aPopulation-Economic aspects; Population research; Demography-Developing countries; Fertility