APA (7th ed.) Citation

Kantor, J. R. (1950). Psychology and logic. The Principia Press.

Chicago Style (17th ed.) Citation

Kantor, J. R. Psychology and Logic. Bloomington, Indiana: The Principia Press, 1950.

MLA (9th ed.) Citation

Kantor, J. R. Psychology and Logic. The Principia Press, 1950.