Soil organic matter studies: proceedings of a symposium jointly organized by the International Atomic Energy Agency  and the Food and  Agriculture Organization of the United Nations in Co-operation with Agrochemical, and held in Braunschweig, 6th -10th September 1976. Vol.2 

 - Vienna  International Atomic Energy Agency  1977 
 - 388p.  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humus
<br/><br/><label>LC Class. No.: </label>UNO S592.5.S95 Vol.2