| 000 | 00447nam a2200145ua 4500 | ||
|---|---|---|---|
| 044 | _aii | ||
| 082 | 0 | _bINT | |
| 111 | 1 |
_aInternational Planetarium Directors' Conference _cBirla planetarium, Calcutta _dDec 29th-Jan 2nd, 1981 _n7th |
|
| 245 | 1 | _aInternational Planetarium Directors' Conference | |
| 260 |
_aCalcuuta _bs.n. _c1981 |
||
| 300 |
_av.p. _bill. _c27cm |
||
| 650 | 0 | 0 | _a1 |
| 008 | 101228 1981 In ### NNNN en | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c429457 _d429457 |
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