Cita APA (7a ed.)

Diefenbach, K. W. (2013). Per aspera ad astra. Philipps-Universität Marburg. https://doi.org/10.17192/eb2013.0092

Cita Chicago Style (17a ed.)

Diefenbach, Karl Wilhelm. Per Aspera Ad Astra. Philipps-Universität Marburg, 2013. https://doi.org/10.17192/eb2013.0092.

Cita MLA (9a ed.)

Diefenbach, Karl Wilhelm. Per Aspera Ad Astra. Philipps-Universität Marburg, 2013. https://doi.org/10.17192/eb2013.0092.