APA (7th ed.) Citation

Hellpach, W. (1907). Die geistigen Epidemien. Rütten & Loening.

Chicago Style (17th ed.) Citation

Hellpach, Willy. Die Geistigen Epidemien. Frankfurt a.M: Rütten & Loening, 1907.

MLA (9th ed.) Citation

Hellpach, Willy. Die Geistigen Epidemien. Rütten & Loening, 1907.

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