Constant, K.M; Sheldrick, William F. <br/><br/>
World nitrogen survey. 

 - Washington :  World Bank,  1992. 
 - World Bank Technical Paper No. 174 .
<br/><br/> The paper aims at providing a comprehensive coverage of the global nitrogen sector including supply and demand balances. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Market Studies.<br/>Nitrogen -- Fertilizers.--Nitrogen -- Fertilizers.