Davis, Polly <br/><br/>
English structure in focus 
Polly Davis. 
 - Rowley, Mass  Newbury House  c1977. 
 - xv, 375 p.  & answer book.  ill.  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0883770776 
<br/><br/><label>LCCN: </label>77010140 //r884 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers.<br/>English language--Programmed instruction.
<br/><br/><label>LC Class. No.: </label>PE1128  / .D35 
<br/><br/><label>Dewey Class. No.: </label>428/.2/4