Null, G. T., & Simons, R. A. (1982). Manifolds, Concepts and Moment-Abstracta. Parts and moments, 439-480.
芝加哥风格引文Null, Gilbert T., 与 Roger A. Simons. "Manifolds, Concepts and Moment-Abstracta." Parts and Moments 1982: 439-480.
MLA引文Null, Gilbert T., 与 Roger A. Simons. "Manifolds, Concepts and Moment-Abstracta." Parts and Moments, 1982, pp. 439-480.
警告：这些引文格式不一定是100％准确.
