VON BITTER, Peter H. Walter Andrew Bell (1889-1969) Canadian Carboniferous Stratigrapher, Paleobotanist and Paleontologist par excellence. Geoscience Canada, [S. l.], v. 24, n. 3, 1997. Disponível em: https://journals.lib.unb.ca/index.php/GC/article/view/3949. Acesso em: 26 apr. 2024.