Kennedy, P. (1993). Preparing for the twenty - first century. New York: Vintage Books.
Chicago-stil citatKennedy, Paul. Preparing for the Twenty - First Century. New York: Vintage Books, 1993.
MLA-referensKennedy, Paul. Preparing for the Twenty - First Century. New York: Vintage Books, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.