Mardia, Kanti V.  and Jupp, Peter E.  <br/><br/>
Directional statistics / 

 - Chichester:  John Wiley,  2000 
 - xxi, 430p. Bibl. Index 
 - Wiley Series in Probability and Statistics .
<br/><br/><label>ISBN: </label>9780471953333 
<br/><br/><label>Dewey Class. No.: </label>519.5  / M322.DS