| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Becoming an Invitational Leader | 978-0-89334-371-2 | 2002 | Betty L. Siegel |
| From Conflict to Conciliation: How to Defuse Difficult Situations | 978-1-4129-7986-3 | 2010 | John J. Schmidt · John M. Novak |
| Helping relationships: basic concepts for the helping professions | 978-0-02-050595-2 | 1978 | Arthur W. Combs · Donald L. Avila |
| Helping relationships: Basic concepts for the helping professions | 978-0-205-05959-1 | 1978 | Arthur W. Combs · Donald L. Avila |
W.P. · W.W. · William P. · William W. · William Watson Purkey
Allyn and Bacon · Green Dragon Publishing Group · Macmillan · SAGE Publications