(1976). International Union of geological science. John Wiley.
Chicago-čujuhus (17. p.)International Union of Geological Science. New York: John Wiley, 1976.
MLA-čujuhus (9. p.)International Union of Geological Science. John Wiley, 1976.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.