Grolier International. (1987). Grolier academic encyclopedia: Vol : 16. Grolier International, Academic American.
Chicago-čujuhus (17. p.)Grolier International. Grolier Academic Encyclopedia: Vol : 16. USA: Grolier International, Academic American, 1987.
MLA-čujuhus (9. p.)Grolier International. Grolier Academic Encyclopedia: Vol : 16. Grolier International, Academic American, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.