Crawford R M M <br/><br/>
Plants at the margin : Ecological limits and climate change .-978-0-521-62309-4 

 -  Cambridge Univ Press, Cambridge, USA 
<br/><br/><label>ISBN: </label>978-0-521-62309-4 
<br/><br/><label>Dewey Class. No.: </label>H:(G:55)/P08/B26873