| 000 | 00410nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aMarsh, C.P., Hyman, T.M. | ||
| 245 | _aProgrammed learning in Extension training: Comparison of the effectiveness of pr | ||
| 260 | _aRaleigh | ||
| 260 | _c1964 | ||
| 300 | _a1-20 p. | ||
| 440 | _aNorth Carolina Agricultural Ex | ||
| 901 | _pS10439 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c130830 _d130830 |
||