Bhattacharya,P.B., <br/><br/>
Basic Abstract Algebra  Textual Documents 
By P.B.Bhattacharya,S.K.Jain & S.R.Nagpaul 
 - 2nd ed. 
 - London  Cambridge University Press  2018 
 - pg487:  21cm. 
<br/><br/><label>ISBN: </label>978-0-521-54548-8 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics Abstract Algebra G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>512.02