APA (7th ed.) Citation

(1939). The journal of unified science: Erkenntnis. W.P. van Stockum & Zoon ; University of Chicago Press.

Chicago Style (17th ed.) Citation

The Journal of Unified Science: Erkenntnis. The Hague, Holland : Chicago, Ill.: W.P. van Stockum & Zoon ; University of Chicago Press, 1939.

MLA (9th ed.) Citation

The Journal of Unified Science: Erkenntnis. W.P. van Stockum & Zoon ; University of Chicago Press, 1939.