Froiland, Sven G. <br/><br/>
The genus Salix (willows) in the Black Hills of South Dakota / 
by Sven G. Froiland. 
 - Washington :  U.S. Dept. of Agriculture,  1962. 
 - iii, 75 p. :  ill., maps ;  23 cm. 
 - Technical bulletin / United States Department of Agriculture ;  no. 1269 .
 - Technical bulletin (United States. Department of Agriculture) ;  no. 1269. .
<br/><br/> Literature cited: p. 73-74. 
<br/><br/><label>LCCN: </label>agr62000435  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Willows--South Dakota.
<br/><br/><label>LC Class. No.: </label>S21  / .A72 no. 1269 
<br/><br/><label>National Agricultural Library Call No.: </label>1  / Ag84Te no.1269