APA

Obinger H., Castles F. G. & Leibfried S. (2005). Federalism and the welfare state. Cambridge: Cambridge University.

Chicago

Obinger Herbert, Castles Francis G and Leibfried Stephan. 2005. Federalism and the welfare state. Cambridge: Cambridge University.

Harvard

Obinger H., Castles F. G. and Leibfried S. (2005). Federalism and the welfare state. Cambridge: Cambridge University.

MLA

Obinger Herbert, Castles Francis G and Leibfried Stephan. Federalism and the welfare state. Cambridge: Cambridge University. 2005.