@book{135882,
	author = {Sánchez Hidalgo, Efraín Sigisfredo},
	title = {Psicología educativa /},
	publisher = {Ediciones de la Universidad de Puerto Rico ,},
	year = {1959.},
	address = {Río Piedras, P.R. :},
	edition = {2. ed. rev.},
	note = {Includes index.}
}