| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Making Self-Employment Work for People with Disabilities | 978-1-59857-403-6 (1-59857-403-5) | 2014 | David Hammis · Beth Keeton · Molly Sullivan |
| Making Self-Employment Work for People with Disabilities | 978-1-55766-652-9 (1-55766-652-0) | 2003 | David Hammis |
| The Job Developer's Handbook: Practical Tactics for Customized Employment | 978-1-55766-863-9 (1-55766-863-9) | 2007 | David Hammis · Tammara Geary |
C.A. · C. G. · C. Griffin · C.M. · Cary Griffin · G. A. · G.M. · M.A.