"Willis J. C." <br/><br/>
Agriculture in the tropics: a elementary treatise 

 - Cambridge  University Press  1914 
 - 223p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture-Tropics
<br/><br/><label>Dewey Class. No.: </label>GL 630.0913 WIL 2nd ed.