Cita APA (7a ed.)

Gunther, G. (1991). Constitutional law (12th ed.). Foundation.

Cita Chicago Style (17a ed.)

Gunther, Gerald. Constitutional Law. 12th ed. Westbury, N.Y.: Foundation, 1991.

Cita MLA (9a ed.)

Gunther, Gerald. Constitutional Law. 12th ed. Foundation, 1991.