@book{73971,
	author = {Walter, Herbert Eugene, and Walter, Alice Hall,},
	title = {Wild Birds in City Parks :},
	publisher = {Project Gutenberg,},
	year = {2010},
	address = {Salt Lake City, UT :},
	note = {Release date is 2010-07-09},
	url = {https://www.gutenberg.org/ebooks/33125}
}