Hawksworth, Frank G.,   1926-1993 <br/><br/>
Biology and classification of dwarf mistletoes (arceuthobium) /  
Frank G. Hawksworth, Delbert Wiens. 
 - Washington D. C. :   Forest Service,   1972. 
 - 234 p.  foto., il. 
 - Agriculture handbook ;   401 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>BIOLOGIA<br/>PLANTAS PARASITAS <br/>ARCEUTHOBIUM<br/>CLASIFICACION