APA (7th ed.) Zitazioa

Allen, F. L. (1972). Since yesterday: The 1930s in America. September 3, 1929-september 3, 1939. Harper and Row.

Chicago Style (17th ed.) Zitazioa

Allen, Frederick Lewis. Since Yesterday: The 1930s in America. September 3, 1929-september 3, 1939. Nueva York: Harper and Row, 1972.

MLA (9th ed.) Zitazioa

Allen, Frederick Lewis. Since Yesterday: The 1930s in America. September 3, 1929-september 3, 1939. Harper and Row, 1972.