De Waard, P.W.F. <br/><br/>
Foliar diagnosis, nutrition and yield stability of black pepper (piper nigrum L) in Sarawak / 
P.W.F. De Waard 
 - Amsterdam :  RTI ,  1968 
 - xi, 148p. :  ill. ;  24 cm. 
 - DAR communication .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spices
<br/><br/><label>Dewey Class. No.: </label>633.83  / DEW