| 000 | 00363cam a22001217a 4500 | ||
|---|---|---|---|
| 008 | 180718b1962 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aP14 H874p | ||
| 100 | _aHughes, J.L. | ||
| 245 |
_aProgramed instruction for schools and industry _cby J.L. Hughes |
||
| 260 |
_aChicago _bScience Research Associates _c1962 |
||
| 300 | _a299p. | ||
| 650 | _aProgrammed instruction | ||
| 999 |
_c368538 _d368538 |
||