@book{88286,
	author = {Mackenzie, Henry,},
	title = {Essay on the Life and Institutions of Offa, King of Mercia, A.D. 755-794},
	publisher = {Project Gutenberg,},
	year = {2014},
	address = {Salt Lake City, UT :},
	note = {Release date is 2014-11-24},
	url = {https://www.gutenberg.org/ebooks/47447}
}