Stewart, Wilson N <br/><br/>
Paleoboatny and the evolution of plants   
by Wilson N Stewart, Gar W Rothwell 
 - 2nd ed 
 - Cambridge  Cambridge University Press  2005 
 - xii, 521p 
<br/><br/><label>ISBN: </label>817596295X 
<br/><br/><label>Dewey Class. No.: </label>561  / P05