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西文图书1.Nonprotein nitrogen in the nutrition of ruminants / FAO/S852.2/FAO
馆藏复本:1
可借复本:1 by J. K. Loosli and I. W. McDonald.
Food and Agriculture Organization of the United Nations, 1968.
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西文图书2.Urea as a protein supplement / 1st ed. S816/UPS
馆藏复本:1
可借复本:1 edited by Michael H. Briggs.
Pergamon Press, c1967.
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西文图书3.Urea and other nonprotein nitrogen compounds in animal nutrition / S816/UON
馆藏复本:1
可借复本:1 Board on Agriculture and Renewable Resources...[etc.]
National Academy of Sciences, 1976.
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