Centre Martin Luther King. Combat Non-Violent. Lausanne: Centre Martin Luther King.
Cita Chicago Style (17a ed.)Centre Martin Luther King. Combat Non-Violent. Lausanne: Centre Martin Luther King.
Cita MLA (8a ed.)Centre Martin Luther King. Combat Non-Violent. Lausanne: Centre Martin Luther King.
Precaución: Estas citas no son 100% exactas.