Purkayastha, Makhan Lal <br/><br/>
Synthetic studies on heterocycles using oxoketene-S, S-, N- and O.S-acetals 

 - NEHU 
 - Shillong  NEHU, Dept of Chemistry  1989 
 - 188p., tables.; 28cm.- 
<br/><br/><label>Dewey Class. No.: </label>DS  / 547.592 PUR