APA (7th ed.) Citation

Trendelenburg, F. A. (1840). Logische Untersuchungen. Logische Untersuchungen.

Chicago Style (17th ed.) Citation

Trendelenburg, Friedrich Adolf. "Logische Untersuchungen." Logische Untersuchungen 1840.

MLA (8th ed.) Citation

Trendelenburg, Friedrich Adolf. "Logische Untersuchungen." Logische Untersuchungen, 1840.

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