Costa, D. L. (1999). American living standards: Evidence from recreational expenditures. National Bureau of Economic Research.
Citazione stile Chigago Style (17a edizione)Costa, Dora L. American Living Standards: Evidence from Recreational Expenditures. Cambridge: National Bureau of Economic Research, 1999.
Citatione MLA (9a ed.)Costa, Dora L. American Living Standards: Evidence from Recreational Expenditures. National Bureau of Economic Research, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.