@book{44110,
	author = {Lewis, C. S.},
	title = {Spirits in Bondage: A Cycle of Lyrics},
	publisher = {Project Gutenberg,},
	year = {1999},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Spirits_in_Bondage},
	url = {https://www.gutenberg.org/ebooks/2003}
}