SoilConservation For Survival 

 -  1992 
<br/><br/><label>ISBN: </label>0-935734-27-9 
<br/><br/><label>LC Class. No.: </label>631.4/SOI  / 2 
<br/><br/><label>Dewey Class. No.: </label>631.4/SOI  / 2