APA (7th ed.) Citation

Keyserling, H. G. (1948). Reise durch die Zeit.

Chicago Style (17th ed.) Citation

Keyserling, Hermann Graf. Reise Durch Die Zeit. 1948.

MLA (8th ed.) Citation

Keyserling, Hermann Graf. Reise Durch Die Zeit. 1948.

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