APA (7th ed.) Citation

Ettlinger, M. (1930). Joseph Geyser Alspsychologe. J. Habbel.

Chicago Style (17th ed.) Citation

Ettlinger, Max. Joseph Geyser Alspsychologe. Regensburg: J. Habbel, 1930.

MLA (9th ed.) Citation

Ettlinger, Max. Joseph Geyser Alspsychologe. J. Habbel, 1930.

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