TY  - BOOK
TI  - Hetrocyclic compounds: edited by Robert C. Elderfield
U1  - 547.59 
PY  - 1951///
CY  - New York
PB  - John Wiley
N1  - Contents: Three, four and six membered monocyclic compounds containing one O, N, and S atom. Elderfield, Robert C
ER  -