ANAND-PRAKASH. Himalayan coals: their nature, composition, formation and rank. Journal of Palaeosciences, [S. l.], v. 40, p. 477–489, 1991. DOI: 10.54991/jop.1991.1795. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1795. Acesso em: 28 apr. 2024.