Spoehr, Herman Augustus. <br/><br/>
The carbohydrate economy of cacti 

 - Washington :  Carnegie Institution,  1919 
 - 79 p. 
 - Publication  ; 287 .
 - Publication  ; 287 .
<br/><br/><label>LCCN: </label>57524 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cactáceas.
<br/><br/><label>Dewey Class. No.: </label>583.47  / S66