Postal Electronic/Maintenance/Mechanic Examination(Passbooks) (Career Examination Passbooks)
| Country | USA |
| Brand | Brand: National Learning Corporation |
| Manufacturer | National Learning Corporation |
| Binding | Plastic Comb |
| UnitCount | 1 |
| EANs | 9780837302294 |
| ReleaseDate | 0000-00-00 |