EEC Programme of Coordination of Research on Effluents from  <br/><br/>
Nitrogen losses on surface run-off from landspread of manures : proceedings.   

 - The Hague.    Martin'e  Nijhoff/Dr.W.Junk Pub.,1081,for the Commission of   1919 
<br/><br/><label>Dewey Class. No.: </label>631.416   / EEC