TY - BOOK AU - Mcfadden, Myra AU - Smith, Wendell I. TI - SETS, RELATIONS & FUNCTIONS U1 - 512.9 PY - 1963/// CY - N. Y. PB - Mcgraw-Hill KW - Aggregates. Programmed Instruction KW - Functions. Programmed Instruction KW - Graphic Methods. Programmed Instruction ER -