Cita APA (7th ed.)
Zimmerman, J. F. (2005). Congressional preemption: Regulatory federalism. State University of New York Press.
Cita Chicago (17th ed.)
Zimmerman, Joseph Francis. Congressional Preemption: Regulatory Federalism. Albany: State University of New York Press, 2005.
Cita MLA (9th ed.)
Zimmerman, Joseph Francis. Congressional Preemption: Regulatory Federalism. State University of New York Press, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.