APA引文

Friedman, M., & Friedman, R. D. (1980). Free to choose: A personal statement. Harcourt Brace Jovanovich.

芝加哥风格引文

Friedman, Milton, 与 Rose D. Friedman. Free to Choose: A Personal Statement. New York: Harcourt Brace Jovanovich, 1980.

MLA引文

Friedman, Milton, 与 Rose D. Friedman. Free to Choose: A Personal Statement. Harcourt Brace Jovanovich, 1980.

警告:这些引文格式不一定是100%准确.