Nonprotein nitrogen in nutrition of ruminents - J.K. loosli; I.W. Mcdonald (Rome Food and Agrciculture organization Of United nation, 1968)
J.K. loosli & I.W. Mcdonald: Nonprotein nitrogen in nutrition of ruminents. Rome. Food and Agrciculture organization Of United nation, 1968.--(636.085LOO)
ENGLISH