@book{141552,
	author = {Peale, Norman Vincent and Blanton, Smiley},
	title = {El arte de la verdadera felicidad},
	publisher = {Ediciones Grijalbo},
	year = {1980.},
	address = {Barcelona},
	edition = {6. ed.},
	note = {Translation of : The art of real happiness.}
}