Cita APA (7th ed.)

KENNEDY, P. (1993). Preparing for the twenty-first century. Random House.

Cita Chicago (17th ed.)

KENNEDY, Paul. Preparing for the Twenty-first Century. New York: Random House, 1993.

Cita MLA (9th ed.)

KENNEDY, Paul. Preparing for the Twenty-first Century. Random House, 1993.