Higgins, P.J.. <br/><br/>
Introduction to Topological Groups /  

 - 1st ed /  
 - Cambridge CB2 1RP :   Cambridge University Press ,   1980 
 - p.109 :  
<br/><br/><label>ISBN: </label>0-521-20527-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Topological Group
<br/><br/><label>Dewey Class. No.: </label>B316  / L4