“TETRAGONOSTYLOPS APTHOMASI (PRICE Y PAULA COUTO, 1950): SU ASIGNACION A ASTRAPOTHERIIDAE (MAMMALIA; ASTRAPOTHERIA)”. Ameghiniana, vol. 19, no. 3-4, Sept. 2013, pp. 234-8, https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/1708.