TY - BOOK AU - Ríos Ramírez,José Gonzalo TI - Selection for conformation and yearling gain in beef cattle under northern Mexico range conditions U1 - T PY - 1976/// CY - Estados Unidos PB - José Gonzalo Ríos Ramírez KW - Mejoramiento KW - Ganado de carne N1 - Master of Science, Tesis Maestría, University of New Mexico ER -