PANT, D. D. The classification of gymnospermous plants. Journal of Palaeosciences, [S. l.], v. 6, n. (1-2), p. 65–70, 1957. DOI: 10.54991/jop.1957.557. Disponível em: https://www.jpsonline.co.in/index.php/jop/article/view/557. Acesso em: 17 may. 2024.