ENGELBRECHT, William; ANSELMI, Lisa Marie. Biography of Jack Holland (1926-2014): Chert expert. Journal of Lithic Studies, [S. l.], v. 2, n. 1, p. 143–150, 2015. DOI: 10.2218/jls.v2i1.1272. Disponível em: https://journals.ed.ac.uk/lithicstudies/article/view/1272. Acesso em: 3 juill. 2024.