Economics of fertilizer use : An annotated bibliography covering published liter 

 - 2nd. rev. edn. 
 - Oxford  Commonwealth Bureau of Agricultural Econ  1976 
 - 50+4p. 
 - Commonwealth Bureau of Agricultural Economics, An.Bib.No.R4 .
<br/><br/><label>Dewey Class. No.: </label>RR 016.3384763181 EC