Friedman, S. D. (2000). Fine structure and class forcing. Walter de Gruyter.
芝加哥风格引文Friedman, Sy D. Fine Structure and Class Forcing. Berlin ; New York: Walter de Gruyter, 2000.
MLA引文Friedman, Sy D. Fine Structure and Class Forcing. Walter de Gruyter, 2000.
警告：这些引文格式不一定是100％准确.