FIELD, B. C., & FIELD, M. K. (2002). Environmental economics: An introduction.-- ed.3. McGraw-Hill.
Chicago-čujuhus (17. p.)FIELD, Barry C., juo Martha K. FIELD. Environmental Economics: An Introduction.-- Ed.3. Boston: McGraw-Hill, 2002.
MLA-čujuhus (9. p.)FIELD, Barry C., juo Martha K. FIELD. Environmental Economics: An Introduction.-- Ed.3. McGraw-Hill, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.