Peters, Pam <br/><br/>
Cambridge guide to english usage  

 - Cambridge:   Cambridge University Press,   2004 
 - ix, 608p. 
<br/><br/><label>ISBN: </label>0-521-84710-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English guide
<br/><br/><label>Subjects--Index Terms: </label>Geology eras 
<br/><br/><label>Universal Decimal Class. No.: </label>R 030.8=20  / P4