| 000 | 00391nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | MPKV051185 | ||
| 008 | 120911s9999 xx 000 0 und d | ||
| 082 | _a630.715 | ||
| 245 |
_aA V Communication Review Vol 19 _c; |
||
| 246 | _aA V Communication Review Vol 19 | ||
| 260 |
_aWashington D.C. _bAssociation for educational communication and Technology. _c1971 |
||
| 650 | _aAgricultural Extension | ||
| 999 |
_c49190 _d49190 |
||