00350nam a2200157Ia 4500 304.6 Sp755.ID Spiegelman, Mortimer Introduction to demography Cambridge Harvard University Press 1968 xx, 514p. 0 0 0 0 ISI ISI 1998-05-26 0 304.6 Sp755.ID DP3553 2019-02-14 00:00:00 2019-02-14 BK 159 159 159