Michalson, Edgar L.  , ed. <br/><br/>
Conservation farming int he United States :  the methods and accomplishments of the STEEP program 
/by Edgar L. Michalson, Robert I. Papendick and John E. Carlson. 
 - Boca Raton, Flo. :  CRC Press,  1999. 
 - 233 p. :  fots.; ilus.; tablas 
<br/><br/><label>ISBN: </label>0849311853 
<br/><br/><label>LCCN: </label>83792 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--E.U.A.<br/>Agricultura--Investigacion--E.U.A.<br/>Cultivos--E.U.A.
<br/><br/><label>Dewey Class. No.: </label>630.5  / M5