@book{35942,
	author = {International Labour Office. and Massarelli, Francesco.},
	title = {Hydro-extractors;},
	publisher = {[Printed by Atar]},
	year = {1929.},
	series = {Studies and reports, Series F, 2d section (Safety)},
	address = {Geneva},
	note = {At head of title: International Labour Office.}
}