Britton, Nathaniel Lord,  1859-1934. <br/><br/>
Studies in Cactaceae. 
By N. L. Britton and J. N. Rose. 
 - Washington,  Govt. print. off.,  1913- 
 - v.  plates.  25 cm. 
 - Smithsonian institution. United States National museum. Contributions from the United States National herbarium.  v. 16, pt. 7 .
<br/><br/><label>LCCN: </label>agr13000611  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cactus.
<br/><br/><label>LC Class. No.: </label>QK1  / .U5 Suppl.