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200 1 $aProtein and non-protein nitrogen for ruminants$eproceedings of the Symposium on Recent Developments in the Use of New Sources of Protein, Essential Amino Acids, and Non-protein Nitrogen, with Special Reference to Ruminants$forganized by the Committee on Agricultural Problems of the United Nations Economic Commission for Europe and the Food and Agriculture Organization of the United Nations, Geneva, 10-13 January 1977
210   $aOxford$cPergamon Press$d1977
215   $aVI, 182 p.$cill.$d24 cm
710 12$aSymposium on Recent Developments in the Use of New Sources of Protein, Essential Amino Acids, and Non-protein Nitrogen, with Special Reference to Ruminants$f<1977 ;$eGeneva>$0513644
711 02$aNazioni Unite.$bEconomic Commission for Europe$0495851
712 02$aFAO
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996   $aProtein and non-protein nitrogen for ruminants$9761388
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