Stromsted, A. A. (1974). Ancient pioneers: Early connections between Scandinavia and the New World. Erik J. Friis.
Chicago-čujuhus (17. p.)Stromsted, Astri A. Ancient Pioneers: Early Connections Between Scandinavia and the New World. Erik J. Friis, 1974.
MLA-čujuhus (9. p.)Stromsted, Astri A. Ancient Pioneers: Early Connections Between Scandinavia and the New World. Erik J. Friis, 1974.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.