The use of isotopes in soil organic matter studies  : report of the FAO 
/ EAEA Technical Meeting 
 - Oxford, Pergamon,  1966 
 - 505 p.  : ius. 
<br/><br/> Supl. to the Journal of Applied Radiation and Isotopes 
<br/><br/><label>LCCN: </label>48054 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energía atómica en agricultura.<br/>Suelos--Materia orgánica.
<br/><br/><label>Dewey Class. No.: </label>631.43  / F3