Cita APA

Kennedy, P. (1993). Preparing for the twenty - first century. New York: Vintage Books.

Chicago Style Citation

Kennedy, Paul. Preparing for the Twenty - First Century. New York: Vintage Books, 1993.

Cita MLA

Kennedy, Paul. Preparing for the Twenty - First Century. New York: Vintage Books, 1993.

Atenció: Aquestes cites poden no estar 100% correctes.