Blyton, Enid <br/><br/>
Five on a secret trail/ 
Enid Blyton. 
 - London:  Knight Books,  1973. 
 - 158 p.;  17 cm. 
 - Famous fives: 15 .
<br/><br/> Siyah 
<br/><br/><label>ISBN: </label>0340042419 
<br/><br/><label>Dewey Class. No.: </label>808.06832  / BLY 1973