@book{270616,
	author = {Witteryck, Antoon Jozef,},
	title = {De waarheid over Esperanto en Ido = La vérité sur l'Esperanto et l'Ido},
	publisher = {Project Gutenberg,},
	year = {2012},
	url = {http://www.gutenberg.org/ebooks/41364}
}