White, G. F <br/><br/>
American foulbrood  / 
by G. F. White 
 - Washington  :   Department of Agriculture 
 - 46 p. + 8 láms. 
 - EUA. Depart. of Agriculture; Bull.; 809 .
<br/><br/><label>LCCN: </label>202924 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abejas -- Enfermedades  Loque americana