Cita APA (7th ed.)

Ott, U., & Michels, V. (1990). Hermann Hesse: 1877-1962.

Cita Chicago (17th ed.)

Ott, Ulrich, i Volker Michels. Hermann Hesse: 1877-1962. Marbach, 1990.

Cita MLA (8th ed.)

Ott, Ulrich, i Volker Michels. Hermann Hesse: 1877-1962. 1990.