Oxford learner's dictionary of academic English 

 - Oxford :  Oxford University Press,  ©2014. 
<br/><br/><label>ISBN: </label>9780194333504 
<br/><br/><label>Subjects--Index Terms: </label>English language Academic language 
<br/><br/><label>Dewey Class. No.: </label>423  / LEA / DM