Crop loss assessment methods :  FAO manual on the evaluation and prevention of of losses by pests, disease and weeds / 
editor L. Chiarappa 
 - Rome :  Food And Agriculture Organization,  1971 
 - v. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop losses<br/>Entomology, Economic<br/>Vegetable pathology<br/>Plant protection--Handbooks, manuals, etc.