Cita APA (7a ed.)

Levy, S. G. (1984). Political Violence in the United States, 1819-1968. [Verlag nicht ermittelbar]. https://doi.org/10.3886/ICPSR00080.v1

Cita Chicago Style (17a ed.)

Levy, Sheldon G. Political Violence in the United States, 1819-1968. [Erscheinungsort nicht ermittelbar]: [Verlag nicht ermittelbar], 1984. https://doi.org/10.3886/ICPSR00080.v1.

Cita MLA (9a ed.)

Levy, Sheldon G. Political Violence in the United States, 1819-1968. [Verlag nicht ermittelbar], 1984. https://doi.org/10.3886/ICPSR00080.v1.