| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Barron's Court Officer Exam | 978-1-4380-1260-5 | 2019 | Frank A. Lombardo M.S. NYPD Ret. |
| Barron's Court Officer Exam | 978-1-4380-0105-0 | 2013 | Frank Lombardo M.S. NYPrint Flashcards Ret. |
| Barron's Police Officer Exam, 10th Edition | 978-1-4380-0914-8 | 2017 | Frank Lombardo M.S. NYPD Ret. |
| Barron's Police Officer Exam Flash Cards | 978-1-4380-7770-3 | 2017 | " |
| Barron's Police Sergeant Examination | 978-1-4380-1098-4 | 2018 | Frank A. Lombardo M.S. NYPD Ret. |
D D · D. P. · D. PH. · D S · D. Schröder · DONALD S · Donald Schroeder · Ph.D. · S D · S. P.