Cita APA (7a ed.)

PETRIE, C. A. (1922). Two Essays in spanish History. Hugh Egerton.

Cita Chicago Style (17a ed.)

PETRIE, C. A. Two Essays in Spanish History. London: Hugh Egerton, 1922.

Cita MLA (9a ed.)

PETRIE, C. A. Two Essays in Spanish History. Hugh Egerton, 1922.