Chaves Salas, A. L. (2007). A historical account of the plans for the education of teachers at the Preschool level in Universidad de Costa Rica's Faculty of Education (1966-2007).

Chaves Salas, Ana Lupita. A Historical Account of the Plans for the Education of Teachers At the Preschool Level in Universidad De Costa Rica's Faculty of Education (1966-2007). 2007.

Chaves Salas, Ana Lupita. A Historical Account of the Plans for the Education of Teachers At the Preschool Level in Universidad De Costa Rica's Faculty of Education (1966-2007). 2007.