00925nam0-22003251i-450 99000546869020331620190520111400.00-387-90836-6000546869USA01000546869(ALEPH)000546869USA0120010829d1984----km y1itay5003----baengGBDemography through problemsNathan Keyfitz, John A. BeekmanNew YorkSpringer Verlagc1984VIII, 141 p.24 cmProblem books in mathematics2001Problem books in mathematicsDemografiaBNCF304.6KEYFITZ,Nathan104369BEEKMAN,John A.103653ITSOL20120104990005468690203316300 304.6 KEY218 DISESBKDISESDemography through problems1128177UNISA