Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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