Abercrombie, David. <br/><br/>
Problems and principles in language study / 
by David Abercrombie. 
 - 2nd ed. 
 - London :  Longman,  1963 [reprinted 1970] 
 - vii, 83 p. ; 
<br/><br/><label>ISBN: </label>0582525004 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language-Study and teaching.-
<br/><br/><label>Dewey Class. No.: </label>407.1  / Pr