APA (7th ed.) Citation
Friedman, M. (1969). <The> Optimum Quantity of Money and Other Essays (1. ed.). De Gruyter.
Chicago Style (17th ed.) Citation
Friedman, Milton. <The> Optimum Quantity of Money and Other Essays. 1. ed. New York: De Gruyter, 1969.
MLA (9th ed.) Citation
Friedman, Milton. <The> Optimum Quantity of Money and Other Essays. 1. ed. De Gruyter, 1969.
Warning: These citations may not always be 100% accurate.