APA (7th ed.) Citation

King, M. L. (1964). Why we can't wait (9. printing.). New American Library.

Chicago Style (17th ed.) Citation

King, Martin Luther. Why We Can't Wait. 9. printing. New York [u.a.]: New American Library, 1964.

MLA (9th ed.) Citation

King, Martin Luther. Why We Can't Wait. 9. printing. New American Library, 1964.