APA (7th ed.) Citation

Friedman, M., & Friedman, R. D. (1990). Free to choose: A personal statement (1st Harvest ed.). Harcourt.

Chicago Style (17th ed.) Citation

Friedman, Milton, and Rose D. Friedman. Free to Choose: A Personal Statement. 1st Harvest ed. San Diego [etc.]: Harcourt, 1990.

MLA (9th ed.) Citation

Friedman, Milton, and Rose D. Friedman. Free to Choose: A Personal Statement. 1st Harvest ed. Harcourt, 1990.