Cita APA (7a ed.)

Acton, J. E. E. D. A., & Himmelfarb, G. (1956). Essays on freedom and power. Thames and Hudson.

Cita Chicago Style (17a ed.)

Acton, John Emerich Edward Dalberg Acton, y Gertrude Himmelfarb. Essays on Freedom and Power. London: Thames and Hudson, 1956.

Cita MLA (9a ed.)

Acton, John Emerich Edward Dalberg Acton, y Gertrude Himmelfarb. Essays on Freedom and Power. Thames and Hudson, 1956.