TY  - BOOK
AU  - Acheson,R.M., x
AU  - x
TI  - An introdiuction to the chemistry of heterocylic compounds: x
SN  - x
U1  - 547.59/ACA 
PY  - 1967///
CY  - New York
PB  - Interscience Publishers
KW  - Chemistry, Organic
N1  - x
ER  -