00441nam a22001577a 4500 117408 117407 OSt 20260706113043.0 220208b ||||| |||| 00| 0 eng d 547.7 SAI SAINSBURY MALCOLM 1202 HETROCYCLIC CHEMISTRY SAINSBURY MALCOLM NEWDELHI WILEY 2014 142p. PYRIDINE- BENZOPYRIDINE- PYRYLIUM SALTS,PYRANS AND PYRONES- ddc BK