Citazione Stile APA (7a Edizione)
Válek, J. Environmental Taxes as a Tool for Environmental Protection.
Citazione stile Chigago Style (17a edizione)
Válek, Juraj. Environmental Taxes as a Tool for Environmental Protection.
Citatione MLA (9a ed.)
Válek, Juraj. Environmental Taxes as a Tool for Environmental Protection.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.