Citazione Stile APA (7a Edizione)

Champbell, A. K., & Seymour , S. (1967). Metropolitan America: Fiscal patterns and government systems. Free Press.

Citazione stile Chigago Style (17a edizione)

Champbell, Alan K., e Sacks Seymour. Metropolitan America: Fiscal Patterns and Government Systems. New York: Free Press, 1967.

Citatione MLA (9a ed.)

Champbell, Alan K., e Sacks Seymour. Metropolitan America: Fiscal Patterns and Government Systems. Free Press, 1967.