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