Koolen, A. J.  1944- <br/><br/>
Agricultural soil mechanics / 
A. J. Koolen, H. Kuipers 
 - Berlin :  Springer-Verlag,  1983 
 - xi, 241 p. :  ill. ;  25 cm 
 - Advanced series in agricultural sciences  v.13 .
<br/><br/>Bibliography : p. 228 -235 
<br/><br/><label>ISBN: </label>3540122575 
<br/><br/><label>LCCN: </label>83-004646 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil mechanics<br/>Tillage