Cita APA (7a ed.)

Elton, G. (1967). The practice of history. Thomas Y.Cromwell Co..

Cita Chicago Style (17a ed.)

Elton, G.R. The Practice of History. New York: Thomas Y.Cromwell Co., 1967.

Cita MLA (9a ed.)

Elton, G.R. The Practice of History. Thomas Y.Cromwell Co., 1967.