| 000 | 00340nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 220119s9999||||xx |||||||||||||| ||und|| | ||
| 040 | _cIAB | ||
| 082 | _a300 HAN | ||
| 100 | _aHanken,A.F.G & Reuver,H.A. | ||
| 245 | 0 | _aSocial Systems And Learning Sustems | |
| 260 |
_bMartinu Nijhoff Publishing _c1981 |
||
| 300 | _a246 P, | ||
| 942 | _cBOOK | ||
| 999 |
_c35246 _d35246 |
||