APA (7th ed.) Zitazioa

Roll, E. (1956). A history of economic thought. Prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Roll, Erich. A History of Economic Thought. Englewood Cliffs, N. J: Prentice-Hall, 1956.

MLA (9th ed.) Zitazioa

Roll, Erich. A History of Economic Thought. Prentice-Hall, 1956.