Queen, Ellery <br/><br/>
The Fourth Side of the Triangle / 
Ellery Queen 
 - 174 p.;  18.1 cm 
<br/><br/><label>ISBN: </label>14003028X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Novelists<br/>English fiction
<br/><br/><label>Dewey Class. No.: </label>823.914  / QUE 1969