Birkhoff, Garrett; Bartee, Thomas C <br/><br/>
Modern applied algebra 

 -  CBS College Publishing, New York  1987 
 - 431 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra; Mathematics
<br/><br/><label>Dewey Class. No.: </label>512  BIR-M