TY  - BOOK
AU  - Weeks,John Robert
TI  - Population: an introduction to concepts and issues 
SN  - 0-534-00921-2
U1  - 304.6 WEE 
PY  - 1981///
CY  - Belmont
PB  - Wadsworth Publishing Company
KW  - Population
N1  - Include bibliographical references and index
ER  -