Graham, Linda E. <br/><br/>
Origin of land plants 
Linds E. Graham. 
 - New York  John Wiley  1993 
 - xvi, 287p., ill.; 23cm. 
<br/><br/><label>ISBN: </label>0-471-61527-7. 
<br/><br/><label>Dewey Class. No.: </label>561  / G63O