Steenbergh, Warren F. <br/><br/>
Ecology of the saguaro II :  Reproduction, germination, establishment, growth, and survival of the young plant / 
Warren F. Steenbergh, Charles H. Lowe. 
 - Tucson :  National Park Service,  1977. 
 - 242 p. ;  il. ;  23 cm. 
 - National Park Service Scientific Monograph ;  8 .
<br/><br/><br/>Inglés 
<br/><br/><label>ISBN: </label> Normal 
<br/><br/><label>Dewey Class. No.: </label>583.56