TY  - BOOK
AU  - Katritzky,A.R.
TI  - Physical methods in heterocyclic chemistry / 
U1  - 547.59 KAT.2 
PY  - 1963///.
CY  - New York : 
PB  - Academic Press., 
KW  - Heterocyclic chemistry
KW  - Heterocyclic compounds
N1  - Includes index.
ER  -