Field, B. C., & Field, M. K. (2009). Environmental economics: An introduction (5th ed., McGraw-Hill international ed.). McGraw Hill.
Chicago Style (17th ed.) CitationField, Barry C., and Martha K. Field. Environmental Economics: An Introduction. 5th ed., McGraw-Hill international ed. Singapore: McGraw Hill, 2009.
MLA (9th ed.) CitationField, Barry C., and Martha K. Field. Environmental Economics: An Introduction. 5th ed., McGraw-Hill international ed. McGraw Hill, 2009.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.