The influence of weather conditions on the occurence of apple scab :  report of a working group of the Commisssion for Agricultural Meteorology.... / 
prepared by J. J. Post ...(et. al) 
 - Geneva :  Secretariat of the World Meteorological Organization,  1963 
 - 41 p.  :  ill. ;  29 cm. 
 - World Meteorological Organization, technical note  No. 55 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Apple scab