Doyal,Arthur Conan <br/><br/>
Valley of Fear :  A sherlock Holmes Adventure (the) / 
Arthur Conan Doyle 
 - London :  Collins Classics,  2016. 
 - xi,220 p.:  18cm. 
<br/><br/><label>ISBN: </label>9780008166755 
<br/><br/><label>Dewey Class. No.: </label>823.912  / DOY/V