| September 15, 2022 | Edited by bitnapper | Edited without comment. |
| September 15, 2022 | Edited by bitnapper | merge authors |
| September 12, 2008 | Edited by ImportBot | Found a matching University of Toronto MARC record |
| September 1, 2008 | Edited by RenameBot | fix author name |
| April 1, 2008 | Created by an anonymous user | initial import |