Revision of conventions nos. 35, 36, 37, 38, 39, and 40 concerning o ld-age, invalidity, and survivors' pensions : fourth item on the age nda. - International Labour Organization (Geneva : International Labour Organization, 1967)
At head of title: Report IV -(2). International Labour Conference, fifty-first session, Geneva, 1967.
Includes bibliographical footnotes.
Keywords: Social security (International law).