| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Trees of New York State: Native and Naturalized | 978-0-8156-3002-9 (0-8156-3002-6) | 2003 | Donald Joseph Leopold |
P Lang · R. L · R Lang · R. P. · Robert L. · Robert Lang · Robert P. · Robert Philip