Upstream :  how to solve problems before they happen / 
Dan Heath.  
 - ix, 308 pages :  illustrations ;  24 cm 
<br/><br/><label>ISBN: </label>9781787632745 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Problem solving.
<br/><br/><label>Dewey Class. No.: </label>153.43