Briggs, David J. <br/><br/>
Agriculture and environment  : the physical geography of temperate agricultural systems 

 - London :  Longman,  1985 
 - 442 p.  ; gráfs. 
<br/><br/><label>LCCN: </label>24134 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología agrícola.<br/>Geografía agrícola.<br/>Sistemas de cultivo.
<br/><br/><label>Dewey Class. No.: </label>630.215  / B7