McCoy, P. (1989). Michael Young: Sand paintings. Runkel-Hue-Williams Ltd..
Cita Chicago (17th ed.)McCoy, Pat. Michael Young: Sand Paintings. London: Runkel-Hue-Williams Ltd., 1989.
Cita MLA (8th ed.)McCoy, Pat. Michael Young: Sand Paintings. Runkel-Hue-Williams Ltd., 1989.
Atenció: Aquestes cites poden no estar 100% correctes.