Ecology of temperate cereal fields 
The 32nd Symposium of the British Ecological Society with the Association of Applied Biologists University of Cambridge 
 - London:  Blackwell Scientific Publications,  1990 
 - ix, 469p. 
<br/><br/><label>ISBN: </label>0-632-03147-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Ecological research Cereal crops 
<br/><br/><label>Universal Decimal Class. No.: </label>633.1:631.95082.2)   / N1