Steelman, J. R. (1947). Science and public policy: A report to the President. U.S. G.P.O.
芝加哥风格引文Steelman, John Roy. Science and Public Policy: A Report to the President. Washington: U.S. G.P.O, 1947.
MLA引文Steelman, John Roy. Science and Public Policy: A Report to the President. U.S. G.P.O, 1947.
警告：这些引文格式不一定是100％准确.