Larsen, James A. <br/><br/>
Northern forest border in Canada and Alaska.   
by James A. Larsen. 
 - New York  Springer-Verlag  1989 
 - xv, 256p 
 - Ecological studies  no.70 .
<br/><br/><label>ISBN: </label>0387967532 
<br/><br/><label>Dewey Class. No.: </label>574.5264  / N89