The US Army Transportation School apprenticeship program for the trade of maintenance mechanic hydraulic equipment (aircraft).
| Author/creator | United States |
| Other author | US Army Transportation School. |
| Format | Book |
| Publication Info | [Washington] : Dept. of Defense, Dept. of the Army, Headquarters, 1981. |
| Description | 9 pages in various pagings ; 28 cm. |
| Subjects |
| Series | DA pam. ; 621-111 DA pam 621-111. ^A236066 |
| General note | "July 1981." |
| GPO item number | 327-E |
| Govt. docs number | D 101.22:621-111/981 |