Real Science Technology. Health. Level K, Unit D c.2.
Chicago-čujuhus (17. p.)Real Science Technology. Health. Level K, Unit D C.2.
MLA-čujuhus (9. p.)Real Science Technology. Health. Level K, Unit D C.2.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.