strahler a <br/><br/>
physical geography  science and systems of the human environment 

 - 3th 
 - america  library congress catalouging in publication  1997 
 - xxii 794  hbk 
<br/><br/><label>ISBN: </label>0471480533 
<br/><br/><label>LC Class. No.: </label>GB51.S8 1997