Level4 (Firm), Hitchens, C., & Wilson, D. (2009). Collision: Christopher Hitchens vs Douglas Wilson. Level4.
Cita Chicago Style (17a ed.)Level4 (Firm), Christopher Hitchens, y Douglas Wilson. Collision: Christopher Hitchens Vs Douglas Wilson. [United States]: Level4, 2009.
Cita MLA (8a ed.)Level4 (Firm), et al. Collision: Christopher Hitchens Vs Douglas Wilson. Level4, 2009.
Precaución: Estas citas no son 100% exactas.