Laatsch, Richard. <br/><br/>
Basic algebraic systems :  an introduction to abstract algebra. / 
Richard Laatsch. 
 - New York,  McGraw-Hill  1968 
 - xii, 224 p. :  illu. ;  24 cm. 
<br/><br/> includes indexes 
<br/><br/><label>LCCN: </label>68-012266 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra, Abstract.
<br/><br/><label>Dewey Class. No.: </label>512.02