TY  - BOOK
AU  - Bartle, Richard A.
TI  - Designing virtual worlds
SN  - 0131018167
PY  - 2004///
CY  - Indianapolis, IND
PB  - New Riders
KW  - Human
KW  - Computer interaction
KW  - Computer games
KW  - Programming
KW  - Design
KW  - Virtual reality
KW  - Social aspects
N1  - Includes bibliographical references and index
ER  -