| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Aquatic Plants of Pennsylvania: A Complete Reference Guide | 978-0-8122-4306-2 | 2011 | Ann Fowler Rhoads |
| The Plants of Pennsylvania: An Illustrated Manual | 978-0-8122-4003-0 | 2007 | " |
| The Plants of Pennsylvania: An Illustrated Manual | 978-0-8122-3535-7 | 2000 | " |
| Trees of Pennsylvania: A Complete Reference Guide | 978-0-8122-3785-6 | 2004 | " |
A. B. · A Block · T.A. · T. B. · Timothy A. · Timothy B. · Timothy Block