| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Adaptive Behavior and Its Measurement: Implications for the Field of Mental Retardation | 978-0-940898-64-6 (0-940898-64-0) | 1999 |
| Out of the Darkness and Into the Light: Nebraska's Experience in Mental Retardation | 978-0-940898-75-2 (0-940898-75-6) | 2002 |
B. L. · E.B. · E. L. · E -R · E. Robert · Edited by · R. L · Robert L.