TY  - BOOK
AU  - Weeks, John Robert,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : an introduction to concepts and issues 
SN  - 0534005497 :
SN  - 2
PY  - 1978///];copyright 1978.46
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Population
N1  - Includes index; Bibliography: p. 335-355; 5
ER  -