@Book{BVMC:971020, author = {Pérez Aldasoro, Pío}, title = {Antonio Zavala Echeverría (Tolosa, 1928 - Pamplona, 2009) [Semblanza]}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2019}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc0971020} }