| 000 | 00339cam a22001097a 4500 | ||
|---|---|---|---|
| 008 | 180718b1959 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aT25 | ||
| 245 |
_aHow to understand workers _cby Department of the Air Force |
||
| 260 |
_aWashington _bU.S. Government Printing Office _c1959 |
||
| 300 | _a16+p | ||
| 700 | _aU.S. Department of the Air Force | ||
| 999 |
_c497670 _d497670 |
||