APA (7th ed.) Citation

Barber, N. W. (2012). The constitutional state (1. publ.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Barber, Nick W. The Constitutional State. 1. publ. Oxford [u.a.]: Oxford Univ. Press, 2012.

MLA (9th ed.) Citation

Barber, Nick W. The Constitutional State. 1. publ. Oxford Univ. Press, 2012.

Warning: These citations may not always be 100% accurate.