Chard, C. S. (1969). Man in prehistory. McGraw-Hill.
Chicago-čujuhus (17. p.)Chard, Chester S. Man in Prehistory. New york: McGraw-Hill, 1969.
MLA-čujuhus (9. p.)Chard, Chester S. Man in Prehistory. McGraw-Hill, 1969.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.