Cita APA (7a ed.)

Field, B. C., & Field, M. K. (2006). Environmental economics: An introduction (4th ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Field, Barry C., y Martha K. Field. Environmental Economics: An Introduction. 4th ed. Boston: McGraw-Hill, 2006.

Cita MLA (9a ed.)

Field, Barry C., y Martha K. Field. Environmental Economics: An Introduction. 4th ed. McGraw-Hill, 2006.