Cita APA (7a ed.)

Marrou, H. I., & Olsen, R. J. (1966). The meaning of history. Helicon.

Cita Chicago Style (17a ed.)

Marrou, Henri Irénée, y Robert J. Olsen. The Meaning of History. Baltimore: Helicon, 1966.

Cita MLA (9a ed.)

Marrou, Henri Irénée, y Robert J. Olsen. The Meaning of History. Helicon, 1966.