Cita APA (7a ed.)

Campbell, J., & Sherrard, P. (1969). Modern Greece. Praeger.

Cita Chicago Style (17a ed.)

Campbell, John, y Philip Sherrard. Modern Greece. New York [etc.]: Praeger, 1969.

Cita MLA (9a ed.)

Campbell, John, y Philip Sherrard. Modern Greece. Praeger, 1969.