Varroasis a honeybee disease /  
Apimondia 
 - Bucharest:  Apimondia Publishing House  1977 
 - 91 p. ; 23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abelhas
<br/><br/><label>Dewey Class. No.: </label>595.799