Jenkins, M. (2009). Watermark: Mark Jenkins. Gmünder.
Cita Chicago (17th ed.)Jenkins, Mark. Watermark: Mark Jenkins. Berlin: Gmünder, 2009.
Cita MLA (8th ed.)Jenkins, Mark. Watermark: Mark Jenkins. Gmünder, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.