(1971). Socialism and capitalism: Score and prospects. Progress.
Chicago-čujuhus (17. p.)Socialism and Capitalism: Score and Prospects. Moscow: Progress, 1971.
MLA-čujuhus (9. p.)Socialism and Capitalism: Score and Prospects. Progress, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.