Cita APA (7a ed.)

Freud, S., & Bullitt, W. C. (1966). Thomas Woodrow Wilson: Twenty-eight president of the United States. A psichological study. Houghton Mifflin.

Cita Chicago Style (17a ed.)

Freud, Sigmund, y William C. Bullitt. Thomas Woodrow Wilson: Twenty-eight President of the United States. A Psichological Study. Boston: Houghton Mifflin, 1966.

Cita MLA (9a ed.)

Freud, Sigmund, y William C. Bullitt. Thomas Woodrow Wilson: Twenty-eight President of the United States. A Psichological Study. Houghton Mifflin, 1966.