| 000 | 00419nam a2200169Ia 4500 | ||
|---|---|---|---|
| 008 | 170901s1989 xx 000 0 und d | ||
| 020 | _a0415020905 | ||
| 082 |
_a378.03 _bG20U |
||
| 100 | _aGarrison, D. R. | ||
| 245 | 0 | _aUnderstanding Distance Education | |
| 260 |
_aLondon _bRoutledge _c1989 |
||
| 300 | _a139 | ||
| 650 | _aEducation | ||
| 650 | _aSocial sciences | ||
| 653 | _aDistance ducation | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c4317 _d4317 |
||