Helbing, Wolfgang <br/><br/>
Chemical tables for laboratory and Industry :  matter, number, process / 
Wolfgang Helbing and Adof Burkart 
 - New Delhi :  Wiley Eastern,  1979 
 - 272 p. ; 24 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry--Tables, etc.