Allenby,R. B. J. T. <br/><br/>
Rings, Fields and Groups:  an introduction to abstract algebra/ 
R. B. J. T, Allenby. 
 - 2nd 
 - Oxford:  Butterworth Heinemann,  1991. 
 - xxvi,383p.:  ill.;  24 cm. 
<br/><br/> Includes bibliographical reference and index 
<br/><br/><label>LC Class. No.: </label>DUCE QA162.A45