(2024). Economics of protected areas. NFLIC.
Chicago-čujuhus (17. p.)Economics of Protected Areas. NFLIC, 2024.
MLA-čujuhus (9. p.)Economics of Protected Areas. NFLIC, 2024.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.