Blumenthal, Joseph C. <br/><br/>
English 2600  a programed course in grammar and usage 
Joseph C. Blumenthal. 
 - 6th. College Ed. 
 - New York  Harcourt Brace  1981. 
 - xxi, 448 p.  23cm. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>0155008625 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Programmed instruction.