00771nam0-2200265 --450 991062089860332120221110112237.020221110d1956----kmuy0itay5050 baengGB 001yyWorld population and resourcesa reportby PEPLondonGeorge Allen & Unwin1956XXXVII, 339 p.21 cmPopolazioneSec. 20.Economia e demografiaSec. 20.312.834Political and Economic Planning070315766ITUNINAREICATUNIMARCBK9910620898603321N. C. XV H 56951109FGBCFGBCWorld population and resources2962695UNINA