TY  - BOOK
AU  - Murdock,Steven H.
AU  - Ellis,David R.
TI  - Applied demography: an introduction to basic concepts, methods and data 
SN  - 0813383722 (pbk.) :
U1  - 304.6 
PY  - 1991///
CY  - Boulder, Colo.
PB  - Westview Press
KW  - Demography
ER  -