Cita APA (7th ed.)
Siedler, C. W. (1935). Guide to Cicero (1a ed.). Oxford Book Company educational publishers.
Cita Chicago (17th ed.)
Siedler, Charles W. Guide to Cicero. 1a ed. Oxford Book Company educational publishers, 1935.
Cita MLA (9th ed.)
Siedler, Charles W. Guide to Cicero. 1a ed. Oxford Book Company educational publishers, 1935.
Atenció: Aquestes cites poden no estar 100% correctes.