Biggs, N.L.. <br/><br/>
Permutation Groups and Combinatorial Structures /  

 - 1st ed /  
 - London N.W.1 :   Cambridge University Press. 
 - p.140 :  
<br/><br/><label>ISBN: </label>0-521-22287-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Permutation Groups
<br/><br/><label>Dewey Class. No.: </label>B27  / L9