Cita APA (7a ed.)

Griffith, E. S. (1989). The American system of government (6th ed.). Routledge.

Cita Chicago Style (17a ed.)

Griffith, Ernest Stacey. The American System of Government. 6th ed. London [etc.]: Routledge, 1989.

Cita MLA (9a ed.)

Griffith, Ernest Stacey. The American System of Government. 6th ed. Routledge, 1989.