Study of agricultural systems 
edited by G. E. Dalton 
 - London  Applied Science Publishers  1975 
 - xiv, 441 p.  ill., map  23 cm. 
<br/><br/> "The proceedings of an international symposium held in the Department of Agriculture and Horticulture, University of Reading." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>System analysis
<br/><br/><label>Dewey Class. No.: </label>630  / .7  / 2