The national parks of Costa Rica / Mario A. Boza, Rolando Mendoza ; with the collaboration of Ronald Chaves … [et al.] ; National Park Service, the National Open University, the National University ; translated by Susana Heringman Los parques nacionales
National Museum of Costa Rica : over one hundred years of history, May 4th 1887-May 4th 1987 / published in collaboration with Lorena San Román Johanning … [et al.] ; translated into English by Susana Heringman