| 000 | 00364nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | MPKV108715 | ||
| 008 | 120911s9999 xx 000 0 und d | ||
| 082 | _a630.715 | ||
| 245 |
_aJournal of Communication Vol 31 _c; |
||
| 246 | _aJournal of Communication Vol 15 | ||
| 260 |
_aUSA _bUniversity of Penneysylvania Philadelophic _c1981 |
||
| 650 | _aAgricultural Extention | ||
| 999 |
_c72067 _d72067 |
||