Alexander, Robert R. <br/><br/>
Ecology, silviculture and management of the engelmann spruce-sub-alpine fir type in the Central and Southern Rocky Mountains 
/ by Robert R. Alexander. 
 - Washington D.C. :  Department of Agriculture Forest Service,  1987. 
 - v, 144 p. ;  30 cm. 
 - Agriculture handbook  No.659 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Englemann spruce; Subapine fir; Silviculture; Silvicultural systems and cutting methods.
<br/><br/><label>Dewey Class. No.: </label>634.928 ALE  / 645