American Association for the Advancement of Science. (2001). Science. s.e.
Chicago-čujuhus (17. p.)American Association for the Advancement of Science. Science. Massachusetts: s.e, 2001.
MLA-čujuhus (9. p.)American Association for the Advancement of Science. Science. s.e, 2001.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.