Elderton, William Palin <br/><br/>
Systems of Frequency Curves 
/ by William Palin Elderton 
 - Cambridge:  Cambridge University Press,  1969. 
 - 216p.; 
<br/><br/><label>ISBN: </label>000 
<br/><br/><label>Dewey Class. No.: </label>519.532  / ELD/S