Posnette, A. F. <br/><br/>
Virus diseases of apples and pears 

 - England :  Commonwealth Agricultural Bureaux,  1963 
 - 141 p.  : ilus. 
 - Commonwealth Bureau of Horticulture and Plantation Crops. technical communication  ; 30 .
 - Commonwealth Bureau of Horticulture and Plantation Crops. technical communication  ; 30 .
<br/><br/><label>LCCN: </label>53985 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fitopatología.<br/>Fruta--Enfermedades por virus.<br/>Manzana--Enfermedades.<br/>Pera--Enfermedades.
<br/><br/><label>Dewey Class. No.: </label>632.8  / P68