Cita APA (7a ed.)
Bouton, C. Time and Freedom. Northwestern University.
Cita estilo Chicago (17a ed.)
Bouton, Christophe. Time and Freedom. Evanston, EUA: Northwestern University.
Cita MLA (9a ed.)
Bouton, Christophe. Time and Freedom. Northwestern University.
Precaución: Estas citas no son 100% exactas.