Gerrard, John <br/><br/>
Fundamentals of soil / 
by John Gerrard 
 - London :  Routledge,  2000. 
<br/><br/><label>ISBN: </label>0415170052 
<br/><br/><label>Subjects--Index Terms: </label>Agriculture Soil 
<br/><br/><label>Dewey Class. No.: </label>631.4