TY  - GEN
AU  - KATRITZKY, ALAN R.
AU  - LAGOWSKI, J.M.
TI  - THE PRINCIPLES OF HETEROCYCLIC CHEMISTRY/ 
U1  - 547.59 K37 
PY  - 1968///
CY  - NEW YORK: 
PB  - ACADEMIC
KW  - 1.QUIMICA ORGANICA
N1  - INCLUYE INDICES
ER  -