Mahoney, J. R. 1. (1950). Natural resources activity of the Federal Government: Historical, descriptive, analytical.
芝加哥风格引文Mahoney, J. Rolla 1894. Natural Resources Activity of the Federal Government: Historical, Descriptive, Analytical. Washington, 1950.
MLA引文Mahoney, J. Rolla 1894. Natural Resources Activity of the Federal Government: Historical, Descriptive, Analytical. 1950.
警告：这些引文格式不一定是100％准确.