APA (7th ed.) Citation

Unger, H. G. (2012). John Quincy Adams. Da Capo Press.

Chicago Style (17th ed.) Citation

Unger, Harlow G. John Quincy Adams. Boston, Mass: Da Capo Press, 2012.

MLA (9th ed.) Citation

Unger, Harlow G. John Quincy Adams. Da Capo Press, 2012.