APA (7th ed.) Citation

Wundt, W. M. (1973). An introduction to psychology. Arno Press.

Chicago Style (17th ed.) Citation

Wundt, Wilhelm Max. An Introduction to Psychology. New York: Arno Press, 1973.

MLA (9th ed.) Citation

Wundt, Wilhelm Max. An Introduction to Psychology. Arno Press, 1973.