Earth and Space Science | American Geophysical Union (AGU). Cambridge University Press.
Chicago-čujuhus (17. p.)Earth and Space Science | American Geophysical Union (AGU). Cambridge University Press.
MLA-čujuhus (9. p.)Earth and Space Science | American Geophysical Union (AGU). Cambridge University Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.