@book{89656,
	author = {Pérez Galdós, Benito, and Bell, Clara,},
	title = {Marianela},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Wikipedia page about this book: https://en.wikipedia.org/wiki/Marianela_(novel)},
	url = {https://www.gutenberg.org/ebooks/48818}
}