Hald A. <br/><br/>
Statistical Tables and Formulas 

 - New York  John Wiley & Sons, Inc.  1952 
 - 97p 
<br/><br/><label>LCCN: </label>nam a22     7a 4500 
<br/><br/><label>Dewey Class. No.: </label>519/HAL/1952