Spearman, C. (1973). The nature of 'intelligence' and the principles of cognition. Arno.
芝加哥风格引文Spearman, Charles. The Nature of 'Intelligence' and the Principles of Cognition. New York: Arno, 1973.
MLA引文Spearman, Charles. The Nature of 'Intelligence' and the Principles of Cognition. Arno, 1973.
警告：这些引文格式不一定是100％准确.