00478nam a2200157 a 450000100080000000500110000800800410001910000180006024500570007826000810013549000290021665000120024565000330025765000120029070000180030210552852016-08-17       1968    bl uuuu     u00u1 u    #d1 aCUNDIFF, L.V.  aImprovement of beef cattle through breeding methods.  aNebraska (USA):Nebraska Agricultural Experimental Station, 1968, 45 p.c1968  a(Research Bulletin; 196)  aBOVINOS  aMEJORAMIENTO GENETICO ANIMAL  aMETODOS1 aGREGORY, K.E.