Cohen, M. R. (1961). The meaning of human history (2nd.ed.). Open Court.
Chicago-čujuhus (17. p.)Cohen, Morris R. The Meaning of Human History. 2nd.ed. Illinois: Open Court, 1961.
MLA-čujuhus (9. p.)Cohen, Morris R. The Meaning of Human History. 2nd.ed. Open Court, 1961.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.