Crop loss assessment methods  : FAO manual on the evaluation and prevention of losses by pests, disease and weeds 

 - Roma :  FAO,  1971 
 - pag. varía  : ilus. 
<br/><br/><label>LCCN: </label>35945 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Plagas.<br/>Cosechas--Pérdidas de.<br/>Malas hierbas--Control.
<br/><br/><label>Dewey Class. No.: </label>632  / F36