Quirk, Randolph. <br/><br/>
A concise grammar of contemporary English / 
Randolph Quirk and Sidney Greenbaum. 
 - New York :  Harcourt Brace Jovanovich,  c1973 
 - xi, 484 p. ;  24 cm. 
<br/><br/> "Based on A grammar of contemporary English by Randolph Quirk [and others]" 
<br/><br/>Bibliography: p. [462]-464. 
<br/><br/> Open. 
<br/><br/><label>ISBN: </label>0155129309 
<br/><br/><label>LCCN: </label>738062  
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Grammar--1950.