Cita APA (7th ed.)

Barendt, E. (1998). An introduction to constitutional law. OUP.

Cita Chicago (17th ed.)

Barendt, Eric. An Introduction to Constitutional Law. Oxford: OUP, 1998.

Cita MLA (9th ed.)

Barendt, Eric. An Introduction to Constitutional Law. OUP, 1998.