APA

Butler Henry N, Macey Jonathan R, . (1996). Using federalism to improve enviornmental policy. Washington D C: The AEI Press.

Chicago

Butler Henry N, Macey Jonathan R, . 1996. Using federalism to improve enviornmental policy. Washington D C: The AEI Press.

Harvard

Butler Henry N, Macey Jonathan R, . (1996). Using federalism to improve enviornmental policy. Washington D C: The AEI Press.

MLA

Butler Henry N, Macey Jonathan R, . Using federalism to improve enviornmental policy. Washington D C: The AEI Press. 1996.