Tracer studies on non-protein nitrogen for ruminants  
/ International Atomic Energy Agency, Proceedings of a panel on the use of nuclear techniques for studying animal protein production from non-protein nitrogen organized by the joint FAO/IAEA division of atomic energy and held in Vienna 11-15 October 1971 
 - Vienna:   International Atomic Energy Agency,   1972 
 - 179p. 
 - Proceedings series  .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>Physics  Chemistry  
<br/><br/><label>Universal Decimal Class. No.: </label>533.9:621.39.6(063)