Cita APA (7a ed.)

Barendt, E. M. (1998). An introduction to constitutional law. University Press.

Cita Chicago Style (17a ed.)

Barendt, E. M. An Introduction to Constitutional Law. Oxford [etc.]: University Press, 1998.

Cita MLA (9a ed.)

Barendt, E. M. An Introduction to Constitutional Law. University Press, 1998.