TY  - BOOK
AU  - Allen, C.F.H.
AU  - Burness, D.M.
TI  - Six membered hetrocyclic nitrogen compounds with four condensed rings: C.F.H. Allen, collaborated with D.M. Burness and others
U1  - 547.7 
PY  - 1951///
CY  - New York
PB  - Interscience publishers
KW  - Chemistry, Organic
KW  - Organic compounds
N1  - Contents: v.2 The chemistry of hetrocyclic compounds
ER  -