Helsen, P. <br/><br/>
Low levels of genetic differentiation between opuntis echios varieties on Santa Cruz (Galapagos) / 
P. Helsen ...[et al.]. 
 -  2009. 
 - 1-10 p. 
<br/><br/><br/>Inglés 
<br/><br/><label>ISBN: </label> Normal 
<br/><br/><label>Subjects--Index Terms: </label>Opuntia echios Genetic Genética 
<br/><br/><label>Dewey Class. No.: </label>583.56