TY  - BOOK
AU  - Elderfield, Robert Cooley (ed.)
TI  - Heterocyclic compounds (vol-5): five-membered heterocycles containing two hetero atoms and their benzo derivatives
T2  - 5
SN  - 50-7589(LOC)
U1  - 547.7 
PY  - 1957///
CY  - New York
PB  - John Wiely and Sons
KW  - Chemistry
KW  - Organic chemistry
N1  - organic chemistry, synthesis, chemical reactions
ER  -