Cita APA (7a ed.)

Hoover, J. E. (1962). A study of communism. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Hoover, J. Edgar. A Study of Communism. New York [etc.]: Holt, Rinehart and Winston, 1962.

Cita MLA (9a ed.)

Hoover, J. Edgar. A Study of Communism. Holt, Rinehart and Winston, 1962.