MLA

Halberstam, Daniel, and Mathias Reimann. Federalism and Legal Unification. Springer Netherlands, 2014.

APA

Halberstam, D., & Reimann, M. (2014). Federalism and Legal Unification. Springer Netherlands.

Chicago

Halberstam, Daniel, and Mathias Reimann. Federalism and Legal Unification. : Springer Netherlands, 2014.