International standards for phytosanitary measures : part 4 - pest surveillance : requirements for the establishment of pest free areas 

 - RomeIT  FAO  1996 
 - [1], 13 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PLANT PROTECTION
<br/><br/><label>Universal Decimal Class. No.: </label>16.05.01 F6863