@book{8900,
	author = {Engelmayer, Otto and Thomas, Juan Jorge},
	title = {Psicología evolutiva de la infancia y de la adolescencia},
	publisher = {Kapelusz},
	year = {1982 [c.1970]},
	series = {Biblioteca de cultura pedagógica},
	address = {Buenos Aires},
	edition = {1a. ed.}
}