| 000 | 00393nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | MPKV057088 | ||
| 008 | 120911s9999 xx 000 0 und d | ||
| 082 | _a630.715 | ||
| 245 |
_aAV Communication Review Vol.22 No.1-4 _c; |
||
| 246 | _aAV Communication Review Vol.22 No.1-4 | ||
| 260 |
_aWashington _bAssociation for Educational Communications and Tech. _c1974 |
||
| 650 | _aAgricultural Extention | ||
| 999 |
_c55081 _d55081 |
||