@book{98578,
	author = {Palmer, George Herbert,},
	title = {Altruism: Its Nature and Varieties},
	publisher = {Project Gutenberg,},
	year = {2018},
	address = {Salt Lake City, UT :},
	note = {Release date is 2018-08-23},
	url = {https://www.gutenberg.org/ebooks/57749}
}