APA-viite

Barker, T. M. (1972). Fredarick the great and the making of Prussia.

Chicago-tyylinen lähdeviittaus

Barker, Thomas M. Fredarick the Great and the Making of Prussia. New York, 1972.

MLA-viite

Barker, Thomas M. Fredarick the Great and the Making of Prussia. 1972.