Cita APA (7a ed.)

Alpert, P. (1951). Twentieth century economic history of Europe. Henry Schuman.

Cita Chicago Style (17a ed.)

Alpert, Paul. Twentieth Century Economic History of Europe. New York: Henry Schuman, 1951.

Cita MLA (9a ed.)

Alpert, Paul. Twentieth Century Economic History of Europe. Henry Schuman, 1951.