@book{102300,
	author = {BEARD, Ruth M.},
	title = {Psicología evolutiva de Piaget /},
	publisher = {: Kapelusz},
	year = {, 1971},
	address = {Argentina},
	note = {Contiene: glosario \ Algunos capítulos incluyen: comentarios, conclusiones y observaciones finales \ An outline of piaget’s developmental psychology for students and teachers}
}