Richards J. C. <br/><br/>
Error analysis : prospectives on second language acquisition 
Jack C. Richards 
 - London  Longman  1974 
 - 228P.:  ill;  24 cm 
<br/><br/> Include bibliographical reference 
<br/><br/><label>ISBN: </label>9780582550445 
<br/><br/><label>LC Class. No.: </label>DUCE P51.E77