APA (7th ed.) Citation

Markowitz, H. (1959). Portfolio selection: Efficient diversification of investments. Yale University Press.

Chicago Style (17th ed.) Citation

Markowitz, Harry. Portfolio Selection: Efficient Diversification of Investments. New Haven ; London: Yale University Press, 1959.

MLA (9th ed.) Citation

Markowitz, Harry. Portfolio Selection: Efficient Diversification of Investments. Yale University Press, 1959.

Warning: These citations may not always be 100% accurate.