Hempel, F. (2010). Voluntary insurance provisions in national social security schemes: Unilateral actions of the countries of origin: contribution to the MIGSEC project Extending the social security rights of African migrant workers. International Labour Organization.
Cita Chicago Style (17a ed.)Hempel, Frank. Voluntary Insurance Provisions in National Social Security Schemes: Unilateral Actions of the Countries of Origin: Contribution to the MIGSEC Project Extending the Social Security Rights of African Migrant Workers. International Labour Organization, 2010.
Cita MLA (9a ed.)Hempel, Frank. Voluntary Insurance Provisions in National Social Security Schemes: Unilateral Actions of the Countries of Origin: Contribution to the MIGSEC Project Extending the Social Security Rights of African Migrant Workers. International Labour Organization, 2010.