Conservation and agriculture / 
edited by Joan Davidson & Richard Lloyd. 
 - Chichester, UK :  Wiley,  c1977. 
 - xii, 252 p. : ill. 
<br/><br/><label>ISBN: </label>0471995029 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural conservation.<br/>Conservation of natural resources.<br/>Land use, Rural--Environmental aspetcs.