Nowotny, J. (1978). Die Gudrunsage. Kinderbuchverlag.
Cita Chicago (17th ed.)Nowotny, Joachim. Die Gudrunsage. Berlin: Kinderbuchverlag, 1978.
Cita MLA (8th ed.)Nowotny, Joachim. Die Gudrunsage. Kinderbuchverlag, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.