Jollands, Peter. <br/><br/>
Weed control in cocoa :  training manual updates   / 
by Peter Jollands. 
 - Rabaul :  CQIP,  [1993]. 
 - 53 (xxii) p. 
<br/><br/> In three sections: (1) Weed control and herbicides; (2) Pesticide application; (3) Appendices. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds--Control--Handbooks, manuals, etc.--Papua New Guinea<br/>Cocoa--Weed control--Handbooks, manuals, etc.--Papua New Guinea