Cita APA (7a ed.)

Kober, A., & Grayzel, S. (1940). History of Jews in Cologne. The Jewish Publication Society of America.

Cita Chicago Style (17a ed.)

Kober, Adolf, y Solomon Grayzel. History of Jews in Cologne. Philadelphia: The Jewish Publication Society of America, 1940.

Cita MLA (8a ed.)

Kober, Adolf, y Solomon Grayzel. History of Jews in Cologne. The Jewish Publication Society of America, 1940.