Systems development in adult language learning :  a European unit/credit system for modern language learning by adults / 
prepared for the Council of Europe by J.L.M. Trim ... [et al.]. 
 - Oxford :  Pergamon for and on behalf of the Council of Europe,  1980. 
 - 146 p. ;  25 cm. 
<br/><br/> First published in 1973. 
<br/><br/><label>ISBN: </label>0080245862 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign students.<br/> English language--Study and teaching--Europe.