| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Century 21: Workplace Enrichment, 7th Edition | 978-0-538-69987-7 (0-538-69987-6) | 2001 | Elaine Langlois · Ann Cooper · Eileen M. Dittmar · Barbara Norstrom |
| Workplace Enrichment: Activities for Skill Development | 978-0-538-43200-9 (0-538-43200-4) | 2001 | Ann Cooper · Eileen M. Dittmar · Elaine Langlois · Barbara Norstom |