000 003030000a22001450004500
060 _a100
082 _a637 PEN
100 _aPenlington, W.A.G
245 _aScience of Dairying
260 _aLondon, Macmillan and Co.
260 _c1948
300 _a274
650 _aDairy Science
942 _cBK
999 _c222821
_d222821