HRUSKA, A. J. High Plains Petroglyphs. Blue Jay, [S. l.], v. 20, n. 2, 1962. DOI: 10.29173/bluejay2665. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2665. Acesso em: 22 nov. 2024.