00346nam a2200133Ia 450000500170000000800410001702000150005805000200007310000170009324500420011025000080015226000360016065000160019620251229182559.0251229s9999    xx            000 0 und d  a0080189806  aSF 207 .P7 1974  aPreston, T.R 0aIntensive beef prodution .cT Preston  a2nd  aNew Yorkb Pergamon pressc1974  aBeef Cattle