@book{36137,
	author = {International Labour Office. and International labor conference},
	title = {Maintenance of rights in course of acquisition and acquired rights under invalidity, old-age and widow's and orphan's insurance on behalf of workers who transfer their residence from one country to another.},
	publisher = {International labour office,},
	year = {1934.},
	address = {Geneva,},
	note = {At head of title: Questionnaire I. International labour conference. Nineteenth session. Geneva, 1935.}
}