Cita APA (7a ed.)

Cicerón, M. T., Cary, M., & Williams, W. G. (1943). The letters to his friends. W. Heinemann ; Harvard University.

Cita Chicago Style (17a ed.)

Cicerón, Marco Tulio, M. Cary, y W. Glynn Williams. The Letters to His Friends. London : Cambridge, Mass.: W. Heinemann ; Harvard University, 1943.

Cita MLA (9a ed.)

Cicerón, Marco Tulio, et al. The Letters to His Friends. W. Heinemann ; Harvard University, 1943.