Phosphate rock and phosphate fertilizer in the world: role of international aid. 

 - Paris :  OECD,  1972. 
<br/><br/> The study analyses the world phosphate rock and fertilizer situation, which special reference to the position and role of the less developed countriesin the field of influence of international aid, (the English text is the second half of the book). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phosphates.<br/>Chemical fertilizer -- Fertilizers -- Agriculture.--Chemical fertilizer -- Fertilizers -- Agriculture.--Chemical fertilizer -- Fertilizers -- Agriculture.