APA

Kennedy P. M. 1., . (1993). Preparing for the twenty-first century. New York: Random House.

Chicago

Kennedy Paul M 1945, . 1993. Preparing for the twenty-first century. New York: Random House.

Harvard

Kennedy P. M. 1., . (1993). Preparing for the twenty-first century. New York: Random House.

MLA

Kennedy Paul M 1945, . Preparing for the twenty-first century. New York: Random House. 1993.