The business system : readings in ideas and concepts, vol. 1 / Clarence Walton and Richard Eells, editors. Walton, Clarence Cyril. Eells, Richard Sedric Fox. Columbia University. Graduate School of Business. Business. Entrepreneurship. HF5011 .W26 650 NAB New York : Macmillan, 1967. 1967. 1967 Text v. 1 ; eng Studies of the modern corporation