Citazione Stile APA (7a Edizione)

Gordon, R. H., & Wilson, J. D. (2001). Expenditure competition. National Bureau of Economic Research.

Citazione stile Chigago Style (17a edizione)

Gordon, Roger H., e John D. Wilson. Expenditure Competition. Cambridge: National Bureau of Economic Research, 2001.

Citatione MLA (9a ed.)

Gordon, Roger H., e John D. Wilson. Expenditure Competition. National Bureau of Economic Research, 2001.