Cox, George W.,  1935- <br/><br/>
Agricultural ecology :  an analysis of food production systems / 
George W. Cox, Michael D. Atkins 
 - San Francisco :  W. H. Freeman,  1979 
 - 721 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0716710463 
<br/><br/><label>LCCN: </label>78-25745 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology<br/>Agriculture