TY  - BOOK
AU  - Grady, Sean M
TI  - Virtual reality : simulating and enhancing the world with computers
SN  - 9780816046867
SN  - 200200438
U1  - 006.8 GRA 
PY  - 2003///
CY  - New York
PB  - Facts on File
KW  - Computer Simulation
KW  - Human-computer interaction
KW  - Human-computer interaction - Juvenile literature
KW  - Virtual reality
KW  - Virtual reality - Juvenile literature
N1  - Includes bibliographical references (p. 206-214) and index
ER  -