Cita APA

Koht, H. 1., & Haugen, E. 1. (1964). Driving forces in history =: Drivmakter i historia, Oslo, 1959. Cambridge, Massachusetts: Harvard University Press.

Citación estilo Chicago

Koht, Halvdan 1873-1965, y Einar 1906-1994 Haugen. Driving Forces in History =: Drivmakter I Historia, Oslo, 1959. Cambridge, Massachusetts: Harvard University Press, 1964.

Cita MLA

Koht, Halvdan 1873-1965, y Einar 1906-1994 Haugen. Driving Forces in History =: Drivmakter I Historia, Oslo, 1959. Cambridge, Massachusetts: Harvard University Press, 1964.