APA (7th ed.) Citation

Diefenbach, K. W., & Fidus. (1913). Per aspera ad astra. Teubner.

Chicago Style (17th ed.) Citation

Diefenbach, Karl Wilhelm, and Fidus. Per Aspera Ad Astra. Leipzig und Berlin: Teubner, 1913.

MLA (9th ed.) Citation

Diefenbach, Karl Wilhelm, and Fidus. Per Aspera Ad Astra. Teubner, 1913.

Warning: These citations may not always be 100% accurate.