Cita APA (7a ed.)

Freitag, A., Aghajanian, K. B., Emmerich, H., & Buijs, J. (1963). The twentieth century atlas of the Christian world: The expansion of Christianity through the centuries. Hawthorn books.

Cita Chicago Style (17a ed.)

Freitag, Anton, Krikor Bedros Aghajanian, Heinrich Emmerich, y Jakob Buijs. The Twentieth Century Atlas of the Christian World: The Expansion of Christianity Through the Centuries. New York: Hawthorn books, 1963.

Cita MLA (9a ed.)

Freitag, Anton, et al. The Twentieth Century Atlas of the Christian World: The Expansion of Christianity Through the Centuries. Hawthorn books, 1963.