| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A Guidebook to Delaware's Historical Markers, National Historic Landmarks, Bronze Tablets, Monuments, Memorials, State Markers, Districts and Select | 978-1-892142-59-7 (1-892142-59-7) | 2014 |
B. Rowland · B. W. · W R.