Cita APA (7a ed.)

Gibbon, E. (1995). Reflections on the fall of Rome. Penguin books.

Cita Chicago Style (17a ed.)

Gibbon, Edward. Reflections on the Fall of Rome. New York [etc.]: Penguin books, 1995.

Cita MLA (9a ed.)

Gibbon, Edward. Reflections on the Fall of Rome. Penguin books, 1995.