Studies in Contrastive Linguistics and Error Analysis: I. the theoretical background/ 
edited by Dietrich Nehls 
 - Verlag  Julius Groos  1979 
 - 121 p. 
<br/><br/><label>ISBN: </label>3872762001 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Socio Linguistics<br/> Language & Languages<br/>Study & teaching
<br/><br/><label>Dewey Class. No.: </label>401.9  / STU