Field and laboratory guide to tree pathology/ 
Robert O. Blanchard, Terry A. Tattar. 
 - New York ::  Academic Press,  1981. 
 - xv, 285 p. : 
<br/><br/><label>ISBN: </label>0121039803 
<br/><br/><label>Dewey Class. No.: </label>571.9  / BLA/F