APA (7th ed.) Citation

King, M. L., Jr., & Bell, C. W. (1963). Letter from Birmingham City Jail. (?).

Chicago Style (17th ed.) Citation

King, Martin Luther, Jr., and Colin W. Bell. Letter from Birmingham City Jail. Birmingham Ala.: (?), 1963.

MLA (9th ed.) Citation

King, Martin Luther, Jr., and Colin W. Bell. Letter from Birmingham City Jail. (?), 1963.