Dietrich, william. <br/><br/>
The Dakota cipher :  an Ehtan Gage adventure / 
William Dietrich. 
 - 1st ed. 
 - New York :  HarperCollins,  2009. 
 - 355 p. :  maps ;  23 cm. 
<br/><br/><label>ISBN: </label>9780061760075(pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>American fiction--20th century.<br/>Historical fiction.<br/>Antiquities--Fiction.<br/>Adventure stories.
<br/><br/><label>Dewey Class. No.: </label>813.54  / D567 2009