Impiccini, Agnes, and Jorge M. Vallés. “Bentonite Deposits of Barda Negra and Cerro Bandera, Zapala Department, Neuquén Province, Argentina.”. Revista de la Asociación Geológica Argentina 57, no. 3 (September 30, 2002): 305-314. Accessed April 25, 2024. https://revista.geologica.org.ar/raga/article/view/738.