@book{4832,
	author = {Edmondson, Ray  and Unesco},
	title = {Audiovisual archiving : phylosophy and principles},
	publisher = {Unesco, },
	year = {2016},
	address = {Paris :},
	url = {https://unesdoc.unesco.org/ark:/48223/pf0000243973/PDF/243973eng.pdf.multi}
}