Butler, J. N. (1958). Physical beneficiation of low-grade uranium ores,. Technical Information Service Extension.
芝加哥风格引文Butler, John Nicholson. Physical Beneficiation of Low-grade Uranium Ores,. Oak Ridge, Tenn.: Technical Information Service Extension, 1958.
MLA引文Butler, John Nicholson. Physical Beneficiation of Low-grade Uranium Ores,. Technical Information Service Extension, 1958.
警告：这些引文格式不一定是100％准确.