| 000 | 00519nam a2200205Ia 4500 | ||
|---|---|---|---|
| 005 | 20250619145029.0 | ||
| 008 | 250619s9999||||xx |||||||||||||| ||und|| | ||
| 020 |
_a0861840135 _c£6.50 |
||
| 040 | _aMAIN | ||
| 041 | _aEnglish | ||
| 082 |
_a374.4 _bSPE |
||
| 100 | _aSpencer, D.C. | ||
| 245 | 0 |
_aThinking about open learning systems _b: working paper 19 |
|
| 260 |
_aLondon _b; Cet _c, 1980 |
||
| 300 | _a200p. | ||
| 650 | _aDistance Education | ||
| 650 | _aEducation | ||
| 650 | _aOpen Learning | ||
| 942 | _cBK | ||
| 999 |
_c119195 _d119195 |
||