APA (7e ed.) Bronvermelding

FIELD, B. C., & FIELD, M. K. (2002). Environmental economics: An introduction.-- ed.3. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

FIELD, Barry C., en Martha K. FIELD. Environmental Economics: An Introduction.-- Ed.3. Boston: McGraw-Hill, 2002.

MLA (9e ed.) Bronvermelding

FIELD, Barry C., en Martha K. FIELD. Environmental Economics: An Introduction.-- Ed.3. McGraw-Hill, 2002.