Schweinfurth, Charles <br/><br/>
First supplement to the Orchids of Peru / 
Charles Schweinfurth 
 - Chicago  :  Field Museum of Natural History,  1970 
 - 80 p.  ;  24 cm. 
 - Fieldiana :  vol. 33 .
<br/><br/> A continuation of the Botanical series of Field Museum of Natural History 
<br/><br/><label>ISBN: </label> RM60.15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orchids--Peru