00393nam a22001337a 4500008004100000040005500041080001400096245004000110260003900150300001500189650001300204653001500217700002700232230802b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a547.7(05)  aAdvances in heterocyclic chemistry   aNew York: bAcademic Press, c1934  aix, 405p.   aScience   aChemistry   aKartritzky, A R (Ed.)