Cita APA (7th ed.)

Copeland, T., & Gunns, A. F. (1993). The Centralia tragedy of 1919: Elmer Smith and the Wobblies. University of Washington Press.

Cita Chicago (17th ed.)

Copeland, Tom, i Albert F. Gunns. The Centralia Tragedy of 1919: Elmer Smith and the Wobblies. Seattle: University of Washington Press, 1993.

Cita MLA (9th ed.)

Copeland, Tom, i Albert F. Gunns. The Centralia Tragedy of 1919: Elmer Smith and the Wobblies. University of Washington Press, 1993.