Cita APA (7a ed.)

Acton, J. E. E. D. A., Holland, J. C., Altholz, J. L., Simpson, R., & McElrath, D. (1971). The correspondence of Lord Acton and Richard Simpson. At the University Press.

Cita Chicago Style (17a ed.)

Acton, John Emerich Edward Dalberg Acton, James C. Holland, Josef L. Altholz, Richard Simpson, y Damian McElrath. The Correspondence of Lord Acton and Richard Simpson. Cambridge: At the University Press, 1971.

Cita MLA (9a ed.)

Acton, John Emerich Edward Dalberg Acton, et al. The Correspondence of Lord Acton and Richard Simpson. At the University Press, 1971.