Report on the caustic soda and bleaching powder industry 

 - Delhi  The Manager of Publications         1955 
 - v, 57p  cm. 
<br/><br/> App.: 50-57p 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(F3111):531.2.N54t, J5