@book{86382,
	author = {Karlson, Paul. and Barceló, José R.},
	title = {Tú y el mundo físico },
	editor = {Gráf. Iberoamericanas)},
	publisher = {Labor, },
	year = {[1943] (},
	address = {Barcelona : },
	edition = {2ª ed. corr. y aum.}
}