English Grammar:  A University Course  [electronic resource] 
Agela Downing 
 - 3rd Edition 
 - 2 Park Square, Milton Park, Abingdon, Oxon OX14 4RN  Routledge  c2015 
 - 1 online resource. 
<br/><br/><label>ISBN: </label>978-1-315-75004-0