FOLINSBEE, R. F.; LEECH, A. P. Energy - Challenge of Man’s Future (Part I). Geoscience Canada, [S. l.], v. 1, n. 1, 1974. Disponível em: https://journals.lib.unb.ca/index.php/GC/article/view/2812. Acesso em: 29 mar. 2024.