Cita APA (7a ed.)
Connolly, J., & Ridyard, J. Imperio. Tusquets.
Cita estilo Chicago (17a ed.)
Connolly, John, y Jennifer Ridyard. Imperio. México: Tusquets.
Cita MLA (9a ed.)
Connolly, John, y Jennifer Ridyard. Imperio. Tusquets.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.