TY  - BOOK
AU  - Salen,Katie
AU  - Zimmerman,Eric
TI  - Rules of play: game design fundamentals 
SN  - 0262240459
AV  - QA76.76 .C672 S243R
PY  - 2004///
CY  - Cambridge, Mass.
PB  - MIT Press
KW  - COMPUTER GAMES
KW  - DESIGN
KW  - PROGRAMMING
N1  - Includes bibliographical references and index
ER  -