Cita APA

Freeze, G. L., & Gregory L. Freeze. (1997). Russia: A history. Oxford,New York: Oxford University Press.

Citación estilo Chicago

Freeze, Gregory L., y Gregory L. Freeze. Russia: A History. Oxford,New York: Oxford University Press, 1997.

Cita MLA

Freeze, Gregory L., y Gregory L. Freeze. Russia: A History. Oxford,New York: Oxford University Press, 1997.