Marx, K. (1970). Karl Marx and Frederick Engels: Collected: Works.
Chicago-čujuhus (17. p.)Marx, Karl. Karl Marx and Frederick Engels: Collected: Works. Moscow, 1970.
MLA-čujuhus (9. p.)Marx, Karl. Karl Marx and Frederick Engels: Collected: Works. 1970.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.