TY  - BOOK
AU  - Weeks,John Robert
TI  - Population: an introduction to concepts and issues 
SN  - 0534061389 :
U1  - 304.6 19
PY  - 1986///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Population
N1  - Includes index; Bibliography: p. 481-513
ER  -