Allen, F. L. (1972). Since yesterday: The 1930s in America. September 3, 1929-september 3, 1939. Harper and Row.
Cita Chicago (17th ed.)Allen, Frederick Lewis. Since Yesterday: The 1930s in America. September 3, 1929-september 3, 1939. Nueva York: Harper and Row, 1972.
Cita MLA (9th ed.)Allen, Frederick Lewis. Since Yesterday: The 1930s in America. September 3, 1929-september 3, 1939. Harper and Row, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.