@book{57820,
	author = {Bartholdt, Richard, and Christen, A.},
	title = {Esperanto: Hearings before the Committee on Education},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-08-04},
	url = {https://www.gutenberg.org/ebooks/16432}
}