APA (7th ed.) Citation

King, M. L., Jr. (1968). Letter from Birmingham jail. Overbrook Press.

Chicago Style (17th ed.) Citation

King, Martin Luther, Jr. Letter from Birmingham Jail. Stamford, Conn.: Overbrook Press, 1968.

MLA (8th ed.) Citation

King, Martin Luther, Jr. Letter from Birmingham Jail. Overbrook Press, 1968.

Warning: These citations may not always be 100% accurate.