| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Conserving Natural Resources | 978-O-O7-OO1O81-9 (O-O7-OO1O81-1) | 1966 | Shirley W. Allen |
J. L. · J. Leonard · J.V. Leonard · J. W. · John W. Leonard · John William Leonard · Joseph W., III Leonard · Joseph W. Leonard · Joseph W. Leonard III · Joseph With Leonard Clark. Callahan · W.L.