34th Annual report 1989-90. 

 - Bombay  Hoechst India ltd.          1989 
 - 148p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9 (L).231.N90 - N89r, N0/GD