00999nam0-22003611i-450-99000125851040332120080326103726.00-387-90836-6000125851FED01000125851(Aleph)000125851FED0100012585120001205d1984----km-y1itay50------baengUSa-------001yyDemography trough problemsN. Keyfitz, J. A. BeekmanNew YorkSpringer-Verlagc1984vi, 141 p.24 cmProblem Books in MathematicsDemografiaEserciziMatematicaSociologiaEsercizi304.621itaKeyfitz,Nathan104369ITUNINARICAUNIMARCBK990001258510403321C-56-(65152MA1MAI-00-01623101MA1MA100A07Demography trough problems381067UNINA