Howell, E. M. Hermann Stieffel, Soldier Artist of the West.
Chicago-čujuhus (17. p.)Howell, Edgar M. Hermann Stieffel, Soldier Artist of the West.
MLA-čujuhus (9. p.)Howell, Edgar M. Hermann Stieffel, Soldier Artist of the West.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.