| 000 | 00307nam a2200121Ia 4500 | ||
|---|---|---|---|
| 100 | _aCallender, Patricia | ||
| 942 | _cBK | ||
| 654 | _a | ||
| 245 |
_aProgrammed learning _bIts development and structure |
||
| 260 |
_aLondon _bLongmans Green & Company _c1969 |
||
| 082 | _a371.394 | ||
| 300 |
_c21.5cm _axii,120 |
||
| 999 |
_c415720 _d415720 |
||
| 041 | _aeng | ||