Laatsch, Richard <br/><br/>
Basic algebraic systems :  an introduction to abstract algebra / 
Richard Laatsch 
 - New York :  McGraw-Hill,  1968 
 - 224 p. ;  24 cm. 
<br/><br/><label>LCCN: </label>68-12266 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algrbra, Abstract