Não informado. (1976). Labour and society. International Institute for Labour Studies.
Chicagoスタイル(17版)引用形式Não informado. Labour and Society. Geneva, Suíça: International Institute for Labour Studies, 1976.
MLA(8版)引用形式Não informado. Labour and Society. International Institute for Labour Studies, 1976.
警告: この引用は必ずしも正確ではありません.