Crompton, Richmal. <br/><br/>
William , The Detective / 
by Richmal Crompton and illus. by. Thomas Henry. 
 - London :  Macmillan Children Books,  1986. 
 - 178 p. :  illus ;  18 cm. 
<br/><br/> The seventeeth William Book. 
<br/><br/><label>ISBN: </label>0333418190 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Detectives--Fiction.<br/>Mystery--Fiction.