Briggs, Cavid J. <br/><br/>
Agriculture and environment. :  The physical geography of temperate agricultural systems / 
David J. Briggs, Frank M. Courtney. 
 - Harlow :  Longman Group UK,  cop. 1989. 
 - XIV, 442 s. :  il. ;  25 cm. 
<br/><br/>Bibliogr. s. 395-434. 
<br/><br/><label>ISBN: </label>0582004136 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geografia rolnictwa.<br/>Rolnictwo