00515nam a2200133Ia 4500008004100000040001700041082002400058100002100082245007400103260004300177300001000220440008500230650006600315190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta301.32bC775P  aCoontz, Sydney H 0aPopulation theories and the economic interpretationscSydney H Coontz  aLondonbRoutledge and Kegan Paulc1957  a200p.  aInternational library of sociology and social reconstruction/ed. by W J H Sprott  aPopulation-Econimic aspects; Population policy; Birth control