TY  - GEN
AU  - Klingsberg, Erwi
TI  - Pyridine and its derivatives, Part  two
T2  - The Chemistry of Heterocyclic Compounds
SN  - 0471380160
U1  - 547.593 
PY  - 1964///
CY  - New York
PB  - John Wiley
ER  -