| 000 | 00319pam a2200121a 44500 | ||
|---|---|---|---|
| 082 |
_a547.8 _bC42 |
||
| 100 | _aSimpson, J. C. E. | ||
| 245 | 1 | _aCONDENSED PYRIDAZINE AND PYRAZINE RINGS | |
| 260 |
_aN. Y. _bJohn Wiley _c1953 |
||
| 440 |
_aChemistry Of Heterocyclic Compounds _v |
||
| 964 | _gCIRC | ||
| 997 | _a18999 v. 5 C | ||
| 999 |
_c432688 _d432688 |
||