Hobson, E.W. <br/><br/>
The Theory of Spherical and  Ellipsoidal Harmonics 

 - 1955. 
 - New York:  Chelsea Publishing Company,  1955. 
 - XI;500p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Statistics, Spherical Harmonics, Ellipsoidal Harmonics.