Encuclopaedia Britannica Macropardia (Conifer-eardisease) 

 - London  Ency. Britannica Inc.  1980 
 - 1138p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>33:L68
<br/><br/><label>Dewey Class. No.: </label>33:L68  / L0.5