Earl, Boyd. <br/><br/>
Groups and fields :  a programmed unit in modern mathematics / 
Boyd Earl, J. William Moore, Wendell I. Smith. 
 - New York :  McGraw-Hill,   1963. 
 - 322 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>LCCN: </label>63010837 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra--Problems, exercises, etc.<br/>Algebra--Programmed instruction.