Cita APA (7th ed.)

Field, B. C., & Field, M. K. (2017). Environmental economics: An introduction (7th ed.). McGraw-Hill Education.

Cita Chicago (17th ed.)

Field, Barry C., i Martha K. Field. Environmental Economics: An Introduction. 7th ed. New York: McGraw-Hill Education, 2017.

Cita MLA (9th ed.)

Field, Barry C., i Martha K. Field. Environmental Economics: An Introduction. 7th ed. McGraw-Hill Education, 2017.