Cita APA (7a ed.)
Symons, J. The 31st of February. Berkley Books.
Cita estilo Chicago (17a ed.)
Symons, Julian. The 31st of February. Nueva York, EUA: Berkley Books.
Cita MLA (9a ed.)
Symons, Julian. The 31st of February. Berkley Books.
Precaución: Estas citas no son 100% exactas.