@book{83444,
	author = {Jaccard, Pierre. and Hernández, Ramón.},
	title = {Historia social del trabajo : },
	publisher = {Plaza & Janés, },
	year = {1971.},
	series = {Tribuna},
	address = {Esplugas de Llobregat [Barcelona] : },
	edition = {1ª ed.}
}