Cita APA (7a ed.)

Williams, R. C. (2000). Environmental tax interactions when pollution affects health or productivity. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Williams, Roberton C. Environmental Tax Interactions When Pollution Affects Health or Productivity. Cambridge, MA: National Bureau of Economic Research, 2000.

Cita MLA (9a ed.)

Williams, Roberton C. Environmental Tax Interactions When Pollution Affects Health or Productivity. National Bureau of Economic Research, 2000.