@book{1850,
	author = {Lepp, Ignace},
	title = {Claridades y tinieblas del alma},
	publisher = {Ediciones Fax},
	year = {1968.},
	address = {Madrid},
	edition = {2. ed.},
	note = {Translation of : Clartés et ténébres de l'ame.}
}