Otten, A. (1970). Hessen Companion. University of México.
Cita Chicago (17th ed.)Otten, Anna. Hessen Companion. Albuquerque, Alemania: University of México, 1970.
Cita MLA (9th ed.)Otten, Anna. Hessen Companion. University of México, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.