TY  - BOOK
AU  - Allen, C.F.H.
TI  - Six-membered heterocyelic nitrogen compounds with three condensed rings: C.F.H. Allen
U1  - 547.7 
PY  - 1958///
CY  - New York
PB  - Interscience Pub
KW  - Heterocyclic compounds Chemistry organic
N1  - Contents: v. 12 The chemistry of heterocyclic compounds
ER  -