Field, B. C., & Field, M. K. (2006). Environmental economics: An introduction (4th ed.). McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Field, Barry C., e Martha K. Field. Environmental Economics: An Introduction. 4th ed. Boston: McGraw-Hill, 2006.
Citatione MLA (9a ed.)Field, Barry C., e Martha K. Field. Environmental Economics: An Introduction. 4th ed. McGraw-Hill, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.