TY - BOOK AU - International Atomic Energy Agency TI - Tracer Studies on Non-Protein Nitrogen for Ruminants II: Proceedings of a Research Co-Ordination Meeting and and Panel on The Use of Non-Protein Nitrogen (NPN) in Ruminants Organiged by The Joint FAO/IAE Division of Atomic Energy in Food and Agriculture and Held in Vienna SN - 9201111754 U1 - 636.2085 PY - 1975/// CY - Vienna PB - International Atomic Energy Agency ER -