Benson, Robert E. <br/><br/>
Tree damage from skyline logging in a Wetren larch/douglas-fir stand / 
Robert E. Benson and Michael J. Gonsior 
 - Washington, D.C. :  U.S. Government Printing Office,  1981 
 - 15 p. ;  26 cm. 
<br/><br/> USDA forest service resaearch 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tree planting<br/>Agroforestry<br/>Plant propagation
<br/><br/><label>Dewey Class. No.: </label>631.536