Cita APA (7th ed.)
Hess, H. (1904). Die Gletscher.
Cita Chicago (17th ed.)
Hess, Hans. Die Gletscher. Braunschweig, 1904.
Cita MLA (9th ed.)
Hess, Hans. Die Gletscher. 1904.
Atenció: Aquestes cites poden no estar 100% correctes.