Bullen, P. S. <br/><br/>
Means and their inequalities  / 

 - Dordrecht:  D. Reidel,  1988 
 - xix, 459p. Index, Bibl. 
 - Mathematics and its applications East European series .
<br/><br/><label>Dewey Class. No.: </label>515.26  / B936.MT