@book{64432,
	author = {DIA INTERNACIONAL DE LOS TRABAJADORES and CCOO},
	title = {1º de Mayo 2002},
	publisher = {CCOO, Confederación Sindical],},
	year = {2002},
	address = {[Madrid :},
	url = {https://docpublicos.ccoo.es/cendoc/073334Manifiesto1MayoCCOO_2002.pdf}
}