MLA

Holzhacker, Ronald L, and Paul Luif. Freedom, Security and Justice In the European Union. Springer New York, 2014.

APA

Holzhacker, R. L, & Luif, P. (2014). Freedom, Security and Justice in the European Union. Springer New York.

Chicago

Holzhacker, Ronald L., and Paul Luif. Freedom, Security and Justice In the European Union. : Springer New York, 2014.