Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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