Crop loss assessment methods (supplement 1) / 
edited by L.Chiarappa 
 - Iowa :  Iowa State University,  1973 
 - various paging :  ill. ;  24 cm . 
 - Food and agriculture organization of the United  Nations Commonwealth Agricultural Bureaux .
<br/><br/>Includes references and index 
<br/><br/><label>ISBN: </label>0851982875