APA-referens (7:e uppl.)

Ferguson, J. H., & McHenry, D. E. (1950). Elements of American government. McGraw-Hill.

Chicago-referens (17:e uppl.)

Ferguson, John Henry, och Dean Eugene McHenry. Elements of American Government. New York: McGraw-Hill, 1950.

MLA-referens (8:e uppl.)

Ferguson, John Henry, och Dean Eugene McHenry. Elements of American Government. McGraw-Hill, 1950.