Library Sparks. Lab Safety Supply.
Chicago-čujuhus (17. p.)Library Sparks. Lab Safety Supply.
MLA-čujuhus (9. p.)Library Sparks. Lab Safety Supply.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.
APA-čujuhus (7. p.)