APA (7th ed.) Citation

Grady, S. M.. (1998). Virtual reality: Computers mimic the physical world. Facts on File.

Chicago Style (17th ed.) Citation

Grady, Sean M. Virtual Reality: Computers Mimic the Physical World. New York: Facts on File, 1998.

MLA (9th ed.) Citation

Grady, Sean M. Virtual Reality: Computers Mimic the Physical World. Facts on File, 1998.

Warning: These citations may not always be 100% accurate.