Hansen, E. M. <br/><br/>
Forest pathogens of N. W. North America  : and their potential for damage in Britain 

 - London :  Her Majesty's Stationery Office,  1985 
 - 14 p. 
 - Forestry commission forest record  ; 129 .
 - Forestry commission forest record  ; 129 .
<br/><br/><label>LCCN: </label>25123 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coníferas--Enfermedades.<br/>Coníferas--Plagas.