Henry, J. M. (1975). Free enterprise, an imperative: Nine essays on "The moral imperative of the American private enterprise system of risks and rewards". Herbert Hoover Presidential Library Association for the Garvey Foundation, Wichita, Kansas.
芝加哥风格引文Henry, John M. Free Enterprise, an Imperative: Nine Essays on "The Moral Imperative of the American Private Enterprise System of Risks and Rewards". West Branch, Iowa: Herbert Hoover Presidential Library Association for the Garvey Foundation, Wichita, Kansas, 1975.
MLA引文Henry, John M. Free Enterprise, an Imperative: Nine Essays on "The Moral Imperative of the American Private Enterprise System of Risks and Rewards". Herbert Hoover Presidential Library Association for the Garvey Foundation, Wichita, Kansas, 1975.