@book{62016,
	author = {Spyri, Johanna, and Kirk, Maria Louise,},
	title = {Heidi :},
	publisher = {Project Gutenberg,},
	year = {2007},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Heidi},
	url = {https://archive.org/details/heidi00spyr_7/page/n7/mode/2up}
}