00470naa a2200145 a 450000100080000000500110000800800410001910000160006024500990007626000060017565300180018165300220019970000170022177300860023811052702007-06-01               bl ---       0--  u    #d1 aCASTLE, M.E  aA comparison between a paddock system and a wye college system of grazing for milk production.  c0  aGADO LEITEIRO  aSISTEMA DE MANEJO1 aWATSON, J.N.  tJournal of the British Grassland Society, Oxfordgv.28, n.1, p.7-11, March, 1973.