PORTER, Kitty. Guide to Information Sources in the Physical Sciences. Issues in Science and Technology Librarianship, [S. l.], n. 28, 2000. DOI: 10.29173/istl1829. Disponível em: https://journals.library.ualberta.ca/istl/index.php/istl/article/view/1829. Acesso em: 18 jul. 2025.