@book{73473,
	author = {Keefe, Eugene K., and Baluyut, Violeta D.,},
	title = {Area Handbook for Bulgaria},
	publisher = {Project Gutenberg,},
	year = {2010},
	address = {Salt Lake City, UT :},
	note = {Release date is 2010-05-31},
	url = {https://www.gutenberg.org/ebooks/32627}
}