TY  - BOOK
AU  - Hess,Frederick M.
AU  - Perrone,Vito
TI  - Bringing the social sciences alive: 10 simulations for history, economics, government, and geography 
SN  - 0205281702
PY  - 1999///
CY  - Boston, Mass.
PB  - Allyn and Bacon
ER  -