Ensz, Edgar H. <br/><br/>
Soil survey of Yankton County, South Dakota / 
by Edgar H. Ensz ; United States Department of Agriculture, Soil Conservation Service, in cooperation with South Dakota Agricultural Experiment Station 
 - Washington :  National Cooperative Soil Survey,  1979 
 - vii, 172 p., [23] fold. leaves of plates :  ill. ;  28 cm. 
<br/><br/> Cover title 
<br/><br/>Bibliography: p. 95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Maps--South Dakota--Yankton County<br/>Soil surveys--South Dakota--Yankton County
<br/><br/><label>Dewey Class. No.: </label>631.47783394