APA (7th ed.) Citation

Külpe, O. (1923). Vorlesungen über Logik. Hirzel.

Chicago Style (17th ed.) Citation

Külpe, Oswald. Vorlesungen über Logik. Leipzig: Hirzel, 1923.

MLA (9th ed.) Citation

Külpe, Oswald. Vorlesungen über Logik. Hirzel, 1923.

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