Pérez, Olga M.; Allen, María de los Ángeles; Thomas Claudet, Pierre; Mata Jiménez, Leonardo (1985)
This is a study of psycho-motor development of 84 eighteen months old
children, living in the districts of Barbacoas, Grifo Alto and Candelarita in the
canton of Puriscal. Gesell and Casati-Lezine tests were employed to ...
