FIELD, B. C. F. (2011). Environmental economics: An introduction. McGraw Hill Education.
Chicago-čujuhus (17. p.)FIELD, Barry C. Field. Environmental Economics: An Introduction. McGraw Hill Education, 2011.
MLA-čujuhus (9. p.)FIELD, Barry C. Field. Environmental Economics: An Introduction. McGraw Hill Education, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.