Friedman, M., & Friedman, R. D. (1990). Free to choose: A personal statement (First Harvest/HBJ edition.). Harcourt Brace Jovanovich.
Chicago Style aipamenaFriedman, Milton, and Rose D. Friedman. Free to Choose: A Personal Statement. First Harvest/HBJ edition. San Diego: Harcourt Brace Jovanovich, 1990.
MLA aipamenaFriedman, Milton, and Rose D. Friedman. Free to Choose: A Personal Statement. First Harvest/HBJ edition. Harcourt Brace Jovanovich, 1990.
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