Püschel, W. (1981). Crazy Horse. Kinderbuchverlag.
Cita Chicago (17th ed.)Püschel, Walter. Crazy Horse. Berlin: Kinderbuchverlag, 1981.
Cita MLA (8th ed.)Püschel, Walter. Crazy Horse. Kinderbuchverlag, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.