Cita APA (7th ed.)

Servan - Schreiber, J. -. J. (1980). The world challenge. Simon and schuster.

Cita Chicago (17th ed.)

Servan - Schreiber, Jean - Jacque. The World Challenge. New York: Simon and schuster, 1980.

Cita MLA (9th ed.)

Servan - Schreiber, Jean - Jacque. The World Challenge. Simon and schuster, 1980.