Gill, William R. <br/><br/>
Soil dynamics in tillage and traction, 
by William R. Gill and Glen E. Vanden Berg. 
 - [Washington]  Agricultural Research Service, U.S. Dept. of Agriculture; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.,  1967] 
 - viii, 511 p.  illus.  24 cm. 
 - United States. Dept. of Agriculture. Agriculture handbook ;  no. 316 .
 - Agriculture handbook (United States. Department of Agriculture) ;  no. 316. .
<br/><br/>Bibliography: p. 460-487. 
<br/><br/><label>LCCN: </label>agr68000061  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil dynamics.<br/>Tillage.<br/>Farm tractors.
<br/><br/><label>LC Class. No.: </label>S591  / .G55 
<br/><br/><label>Dewey Class. No.: </label>631.5/1 
<br/><br/><label>National Agricultural Library Call No.: </label>1Ag84Ah no. 316