| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Human Relations Development: A Manual for Educators | 978-0-205-44568-4 (0-205-44568-3) | 2005 | George M Gazda · Fred J. Balzer · William C. Childers · Allison Nealy · Richard P. Walters |
| Human Relations Development: A Manual for Educators | 978-0-205-28902-8 (0-205-28902-9) | 1998 | George M. Gazda · Frank R. Asbury · Fred J. Balzer · William C. Childers |