D. J. · D.S. · Donald J. · Donald J. Schroeder and Frank A. Lombardo · Donald J. Schroeder Ph.D. · Donald Schroeder · J. Schroeder
Barron's Educational Series · Gould Publications · Looseleaf Law Publications
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Barron's Correction Officer Exam | 978-0-7641-3800-3 | 2008 | Frank Lombardo |
| Bullets for law enforcement promotion: | 978-0-87526-600-8 | 2001 | |
| Correction Officer Exam | 978-0-7641-1383-3 | 2001 | |
| Court Officer Exam | 978-0-7641-2366-5 | 2004 | Frank A. Lombardo |
| How to Be Successful on "Oral" Assessment Exercises for Police Promotion | 978-0-930137-67-0 | 2005 | |
| How to Prepare for the State Trooper Examinations: Including Highway Patrol Officer | 978-0-7641-2057-2 | 2004 | |
| Police Officer Exam | 978-0-7641-2410-5 | 2005 | Frank A. Lombardo |
| Police Sergeant Exam | 978-0-7641-2360-3 | 2004 | " |