Nitrogen-15 in soil-plant studies  proceedings of a research co-ordination meeting on recent developments in the use of nitrogen-15 in soil-plant studies 
organized by the Joint FAO/IAEA Division of Atomic Energy in Food and Agriculture and held in Sofia 1-5 December 1969 
 - Vienna  IAEA  1971 
 - [5], 255 s.  tbl., graf.  24 cm. 
 - IAEA Panel proceedings series .
<br/><br/>Kaynakça var. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen fertilizers--Congresses.<br/>Nitrogen--Congresses.--Isotopes<br/>Plants--Congresses.--Effect of nitrogen on
<br/><br/><label>Dewey Class. No.: </label>631.842 RES 1971