The scientifil basis of modern agriculture. 

 - Astralia    sydney uni press  1990 
<br/><br/><label>ISBN: </label>0424001187 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agrculture-Economic Aspects.
<br/><br/><label>LC Class. No.: </label>S 540  .E25S34