TY - BOOK AU - Sprague,G.F. AU - Dudley,J.W. TI - Corn and corn improvement SN - 0891180990 AV - SB191.M2 C51 U1 - SB191.M2 PY - 1988/// CY - Madison, Wis. PB - American Society of Agronomy KW - Corn KW - Breeding N1 - Includes bibliographies and index ER -