Tolstoi, A. (1966). Ordeal a trilogy Book III Bleak Morning. Progress publishers.
Chicago-čujuhus (17. p.)Tolstoi, Alexei. Ordeal a Trilogy Book III Bleak Morning. London: Progress publishers, 1966.
MLA-čujuhus (9. p.)Tolstoi, Alexei. Ordeal a Trilogy Book III Bleak Morning. Progress publishers, 1966.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.