Campbell, R. (1977). The Enigma of the mind. Time-Life International.
芝加哥风格引文Campbell, Robert. The Enigma of the Mind. Nederland B.V: Time-Life International, 1977.
MLA引文Campbell, Robert. The Enigma of the Mind. Time-Life International, 1977.
警告：这些引文格式不一定是100％准确.