Hanley Nick. (2013). Introduction to Environmental Economics (n 2nd.). Oxford University Press.
Chicago-čujuhus (17. p.)Hanley Nick. Introduction to Environmental Economics. n 2nd. Great Britai: Oxford University Press, 2013.
MLA-čujuhus (9. p.)Hanley Nick. Introduction to Environmental Economics. n 2nd. Oxford University Press, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.