Saint-Exupéry, A. d. (1948). Citadelle. Gallimard.
Cita Chicago Style (17a ed.)Saint-Exupéry, Antoine de. Citadelle. Paris: Gallimard, 1948.
Cita MLA (9a ed.)Saint-Exupéry, Antoine de. Citadelle. Gallimard, 1948.
警告：這些引文格式不一定是100％准確.
Cita APA (7a ed.)