Zimmerman. Interstate Cooperation, Second Edition. State University of New York Press.
Citazione stile Chigago Style (17a edizione)Zimmerman. Interstate Cooperation, Second Edition. State University of New York Press.
Citatione MLA (8a ed.)Zimmerman. Interstate Cooperation, Second Edition. State University of New York Press.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.