Janzen, Daniel H. <br/><br/>
Swollen-thorn acacias of Central America / 
by Daniel H. Janzen. 
 - Washington:  Smithsonian Institution Press,  1974. 
 - 131 p. :  ill. ;  27 cm. 
 - Smithsonian contributions to botany ; no.13 .
<br/><br/>p. 130-131. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acacia--Central America--Ecology.<br/>Ants--Central America.<br/>Botany--Central America--Ecology.