Pearce, D. W., & Turner, R. K. (1990). Economics of natural resources and the environment. Johns Hopkins University Press.
Chicago-čujuhus (17. p.)Pearce, David W., juo R. Kerry Turner. Economics of Natural Resources and the Environment. Baltimore: Johns Hopkins University Press, 1990.
MLA-čujuhus (9. p.)Pearce, David W., juo R. Kerry Turner. Economics of Natural Resources and the Environment. Johns Hopkins University Press, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.