| title | ISBN-13 (ISBN-10)  | year of publica- tion  | other author(s) | 
|---|---|---|---|
| Administration for Exercise-Related Professions | 978-0-534-51833-2 (0-534-51833-8)  | 2002 | Thomas D. Langley | 
| Administration For Exercise-Related Professions | 978-0-89582-417-2 (0-89582-417-5)  | 1998 | " | 
| Walking for Fun and Fitness | 978-0-89582-321-2 (0-89582-321-7)  | 1995 | Sandra M. Hawkins | 
D,. H.. · D. Hawkins · J.D. · J. H. · J. Hawkins