Shifley, Stephen R. <br/><br/>
ELM-ASH-COTTONWOOD forest type bibiliography  / 
by Stephen R. Shifley, and Kenneth M. Brown 
 - Washington :  United States Government Printing Office,  1977 
 - Variou Pagings :  ill. ;  cm. 
<br/><br/> Cover title 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Subject bibliographies<br/>Cottonwoods
<br/><br/><label>Dewey Class. No.: </label>016.58365