Citazione Stile APA (7a Edizione)

Kennedy, P. M. (1994). Preparing for the twenty-first century (First Vintage Books edition.). Vintage Books.

Citazione stile Chigago Style (17a edizione)

Kennedy, Paul M. Preparing for the Twenty-first Century. First Vintage Books edition. New York: Vintage Books, 1994.

Citatione MLA (8a ed.)

Kennedy, Paul M. Preparing for the Twenty-first Century. First Vintage Books edition. Vintage Books, 1994.