Cita APA (7th ed.)
Haak, K. (1989). Sleeping beauties. Gmünder.
Cita Chicago (17th ed.)
Haak, Ken. Sleeping Beauties. Berlin: Gmünder, 1989.
Cita MLA (9th ed.)
Haak, Ken. Sleeping Beauties. Gmünder, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.