Cita APA (7th ed.)

Field, B. C., & Field, M. K. (2021). Environmental economics: An introduction (Eight edition.). McGraw-Hill.

Cita Chicago (17th ed.)

Field, Barry C., i Martha K. Field. Environmental Economics: An Introduction. Eight edition. New York, NY: McGraw-Hill, 2021.

Cita MLA (8th ed.)

Field, Barry C., i Martha K. Field. Environmental Economics: An Introduction. Eight edition. McGraw-Hill, 2021.