@book{73920,
	author = {Spencer, Sanders,},
	title = {The Pig: Breeding, Rearing, and Marketing},
	publisher = {Project Gutenberg,},
	year = {2010},
	address = {Salt Lake City, UT :},
	note = {Release date is 2010-07-04},
	url = {https://www.gutenberg.org/ebooks/33074}
}