TY  - BOOK
TI  - Hetrocyclic compounds: edited by Robert C. Elderfield
U1  - 547.59 
PY  - 1952///
CY  - New York
PB  - John Wiley
N1  - Contents:v3 Polycyclic derivatives of pyrrole polycyclic systems with one nitrogen common to both ring pyrindine and related compounds. Elderfield, Robert C
ER  -