Cita APA (7th ed.)
Hoellwarth, J. (1891). Goldener Himmelsschlüssel: Gebetbüchlein.
Cita Chicago (17th ed.)
Hoellwarth, Johann. Goldener Himmelsschlüssel: Gebetbüchlein. Brixen, 1891.
Cita MLA (9th ed.)
Hoellwarth, Johann. Goldener Himmelsschlüssel: Gebetbüchlein. 1891.
Atenció: Aquestes cites poden no estar 100% correctes.