APA (7th ed.) Citation

Hollonius, L., & Spengler, F. (1891). Somnium vitae humanae. M. Niemeyer.

Chicago Style (17th ed.) Citation

Hollonius, Ludwig, and Franz Spengler. Somnium Vitae Humanae. Halle a.S.: M. Niemeyer, 1891.

MLA (8th ed.) Citation

Hollonius, Ludwig, and Franz Spengler. Somnium Vitae Humanae. M. Niemeyer, 1891.

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