Grzimek, Robert Benno Otto. <br/><br/>
From subsistence gardening towards cash cropping with trees ... / 
Robert Benno Otto Grzimek. 
 - London :   ODI,   1992. 
 - 12 p.  ;   21 cm. 
<br/><br/>Includes bibliographical references (p. 12) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Shifting cultivation.<br/> Agricultural systems-- Indonesia, Eastern.
<br/><br/><label>Dewey Class. No.: </label>631.5