@book{77762,
	author = {Levick, G. Murray},
	title = {Antarctic Penguins: A Study of Their Social Habits},
	publisher = {Project Gutenberg,},
	year = {2011},
	address = {Salt Lake City, UT :},
	note = {Release date is 2011-08-01},
	url = {https://www.gutenberg.org/ebooks/36922}
}