HOEG, O.; BOSE, M.; SHUKLA, B. Some fossil plants from the PO series of Spiti (N. W. Himalayas). Journal of Palaeosciences, [S. l.], v. 4, p. 10–13, 1955. DOI: 10.54991/jop.1955.475. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/475. Acesso em: 15 may. 2024.