APA-referens

Roberts , J. M. (1967). Europe 1880-1945. Longmans , Green and co.

Chicago-stil citat

Roberts , J M. Europe 1880-1945. Great Britain: Longmans , Green and co, 1967.

MLA-referens

Roberts , J M. Europe 1880-1945. Longmans , Green and co, 1967.