TY  - BOOK
ED  - United Nations.
TI  - MortPak and MortPak-Lite upgrades: version 3.0 of the United Nations software packages for mortality measurement
SN  - 9211511917
PY  - 1990///
CY  - New York
PB  - United Nations
KW  - Mortality
KW  - software
ER  -