@book{43564,
	author = {Spyri, Johanna, and Edwards, Marion},
	title = {Heidi},
	publisher = {Project Gutenberg,},
	year = {1998},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Heidi},
	url = {https://www.gutenberg.org/ebooks/1448}
}