| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Aspirationspneumonie | 978-3-13-166501-0 (3-13-166501-7) | 1979 | |
| Encyclopedia of Historic Forts: The Military, Pioneer, and Trading Posts of the United States | 978-0-02-926880-3 (0-02-926880-X) | 1988 | |
| New York's Forts in the Revolution | 978-0-8386-2063-2 (0-8386-2063-9) | 1980 |
B. Roberts · R. B · R.R. · R. Roberts · Robert B. · Robert R. · Robert Roberts
Fairleigh Dickinson Univ Pr · Macmillan · Thieme