Hopperstead, S.  L <br/><br/>
Bitter rot of apples and its control in Delaware  / 
S. L. Hopperstead, M. W. Goodwin, K. J. Kadow 
 - Newark, Delaware  :   Agricultural Experiment Station 
 - 23 p. 
 - Delaware. Agri. Exp. Sta., Bull.; 24 .
<br/><br/><label>LCCN: </label>202070 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manzana -- Enfermedades  Fungicidas  Mancha amarga