TY  - GEN
AU  - Weeks, John R.
TI  - Population : : an introduction to concepts and issues / 
SN  - 0534101224
U1  - 304.6 WEE 
PY  - 1989///
CY  - Belmont
PB  - Wadsworth Publishing Company
KW  - Population
N1  - Includes bibliographical references and index
ER  -