Gradstein, S. Robbert. <br/><br/>
Annotated catalogue of the liverworts and hortworts of the Galápagos Islands / 
S. Robbert Gradstein. 
 -  2009. 
 - 143-162 p. 
<br/><br/><br/>Inglés 
<br/><br/><label>Dewey Class. No.: </label>588.3