| Title | Designing Virtual Worlds |
| Publication Type | Book |
| Year of Publication | 2003 |
| Authors | Bartle, Richard A. |
| ISSN Number | 0131018167 |
| Title | Designing Virtual Worlds |
| Publication Type | Book |
| Year of Publication | 2003 |
| Authors | Bartle, Richard A. |
| ISSN Number | 0131018167 |