Demography through problems/
Keyfitz, Nathan, 1913-
Demography through problems/ Nathan Keyfitz, John A. Beekman. - 141 pages; illustrations, 23 centimeters. - Problem books in mathematics. .
Includes bibliography.
0387908366 3540908366
83006775
Demography--Problems, exercises, etc.
HB850.3 KEY
Demography through problems/ Nathan Keyfitz, John A. Beekman. - 141 pages; illustrations, 23 centimeters. - Problem books in mathematics. .
Includes bibliography.
0387908366 3540908366
83006775
Demography--Problems, exercises, etc.
HB850.3 KEY