Cita APA (7a ed.)

Duncan, C., & Machan, T. R. (2005). Libertarianism: For and against. Rowman & Littlefield.

Cita Chicago Style (17a ed.)

Duncan, Craig, y Tibor R. Machan. Libertarianism: For and Against. Lanham, Md.: Rowman & Littlefield, 2005.

Cita MLA (8a ed.)

Duncan, Craig, y Tibor R. Machan. Libertarianism: For and Against. Rowman & Littlefield, 2005.