APA (7th ed.) Citation

Robbins, L. (1956). The economist in the twentieth century and other lecture in political economy. Macmillan.

Chicago Style (17th ed.) Citation

Robbins, Lionel. The Economist in the Twentieth Century and Other Lecture in Political Economy. London: Macmillan, 1956.

MLA (9th ed.) Citation

Robbins, Lionel. The Economist in the Twentieth Century and Other Lecture in Political Economy. Macmillan, 1956.