TY  - BOOK
AU  - Tekinbaş,Katie Salen
AU  - Zimmerman,Eric
TI  - Rules of play: game design fundamentals 
SN  - 9780262240451
U1  - 794.81526 23
PY  - 2004///]
CY  - Cambridge, Massachusetts, London, England
PB  - MIT Press
KW  - Computer games
KW  - Design
KW  - Programming
N1  - Includes bibliographical references and index
ER  -