003650000a22001570004500020001500000060000800015082001600023100001800039100001700057245003000074250000600104260002700110260000900137300000800146650005300154  a0080177883  a100  a636.213 PRE  aPreston, T.R.  aWillis, M.B.  aIntensive beef production  a2  aOxford, Pergamon Press  c1970  a567  aBeef -  production/ beef cattle/ calf production