Cita APA (7a ed.)

Elton, G. R. (1974). The practice of history (1st issued, 5th imp.). Collins.

Cita Chicago Style (17a ed.)

Elton, G. R. The Practice of History. 1st issued, 5th imp. London [etc.]: Collins, 1974.

Cita MLA (9a ed.)

Elton, G. R. The Practice of History. 1st issued, 5th imp. Collins, 1974.