(1993). Ústi nad Labem, Burg Schreckenstein.
Tohutoru Kātū Chicago (17th ed.)Ústi Nad Labem, Burg Schreckenstein. 1993.
Tohutoro MLA (9th ed.)Ústi Nad Labem, Burg Schreckenstein. 1993.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.
Tohutoro APA (7th ed.)