CRUMMEY, Donald. In memoriam William Alfred Shack (1923-2000). Aethiopica, [S. l.], v. 4, n. 1, p. 200–201, 2001. DOI: 10.15460/aethiopica.4.1.502. Disponível em: https://journals.sub.uni-hamburg.de/aethiopica/article/view/502. Acesso em: 3 jul. 2024.