Cummins, E. F. (1990). Iron Gag: A chronicle of San Quentin Prison, 1950 - 1980; book suppression, inmate resistance, and the rise and fall of the prison movement left.
Cita Chicago Style (17a ed.)Cummins, Eric F. Iron Gag: A Chronicle of San Quentin Prison, 1950 - 1980; Book Suppression, Inmate Resistance, and the Rise and Fall of the Prison Movement Left. 1990.
Cita MLA (9a ed.)Cummins, Eric F. Iron Gag: A Chronicle of San Quentin Prison, 1950 - 1980; Book Suppression, Inmate Resistance, and the Rise and Fall of the Prison Movement Left. 1990.
Precaución: Estas citas no son 100% exactas.