Babcock, Ernest Brown. <br/><br/>
The genus crepis 

 - Berkeley :  University of California,  1947 
 - 2 v.  : ilus 
<br/><br/>Contenido: v.1 The taxonomy, phylogeny, distribution, and evolution of crepis. v.2 Systematic treatment 
<br/><br/><label>LCCN: </label>10100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crepis.<br/>Herencia.
<br/><br/><label>Dewey Class. No.: </label>583.552  / B32