Blyton , Enid  <br/><br/>
The valley of adventure :  

 - Macmillan :   London ;  1947. 
 - 278 p ; 21 cm .  01 
 - 2025-06-02 
<br/><br/><label>ISBN: </label>9781447299035 
<br/><br/><label>Nat. Bib. No.: </label>0011320 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>BLY 
<br/><br/><label>Universal Decimal Class. No.: </label>823