00510naa a2200193 a 450000100080000000500110000800800410001910000180006024500470007826000090012565300220013465300180015665300170017465300120019170000160020370000190021970000190023877300590025710494062006-10-25       1962    bl ---       0--  u    #d1 aSWIGER, L. A.  aSelecting beef cattle for economical gain.  c1962  aAspecto economico  aGado de corte  aMelhoramento  aSelecao1 aKOCH, R. M.1 aGREGORY, K. E.1 aARTHAUD, V. H.  tJournal Animal Sciencegv. 21, n. 3, p. 588-592, 1962.