| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Explosives for North American Engineers, Third Edition | 978-0-87201-259-2 (0-87201-259-X) | 1988 |
| Management of Intelligence | 978-0-07-024656-0 (0-07-024656-4) | 1967 |
| Management of Intelligence: Instructor's | 978-0-07-024658-4 (0-07-024658-0) | 1967 |
C. G. · Cedric Errol Gregory · E. G. ?? · E Gregory · Tucker, Chris (editor) Gregory