Clarke, S. (2007). Merde happens: Stephen Clarke. Bantam Press.
Cita Chicago (17th ed.)Clarke, Stephen. Merde Happens: Stephen Clarke. London [und andere]: Bantam Press, 2007.
Cita MLA (8th ed.)Clarke, Stephen. Merde Happens: Stephen Clarke. Bantam Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.