APA-čujuhus (7. p.)
Journal of environmental studies and sciences [J Environ Stud Sci] NLMUID: 101652082.
Chicago-čujuhus (17. p.)
Journal of Environmental Studies and Sciences [J Environ Stud Sci] NLMUID: 101652082.
MLA-čujuhus (9. p.)
Journal of Environmental Studies and Sciences [J Environ Stud Sci] NLMUID: 101652082.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.