P.M. · P R · Pat R. Materka · R. M.
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Time In, Time Out, Time Enough | Paperback | 978-0-13-921718-0 | 1982 |
| Time In, Time Out, Time Enough | Hardcover | 978-0-13-921726-5 | 1982 |
| Workshops and seminars: Planning, producing, and profiting | Paperback | 978-0-13-806415-0 | 1986 |
| Workshops and Seminars: Planning, Producing, and Profiting | " | 978-0-13-967787-8 | 1986 |
| Workshops and Seminars: Planning, Promoting, Producing, Profiting | Hardcover | 978-0-13-967795-3 | 1989 |