00441nam a2200157Ia 4500008004100000082001400041100001600055245002300071260004700094300000800141650004100149650003400190653001600224653002300240700002000263170901s1974    xx            000 0 und d  a636bC48A  aCole, H. H. 0aAnimal Agriculture  aSan FranciscobW. H. Freeman and Co.c1974  a788  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgriculture  aLivestock industry  aRonning, Magnar