Spiezia, V. (2002). The greying population: A wasted human capital or just a social liability? International Labour Organization.
Style de citation Chicago (17e éd.)Spiezia, Vincenzo. The Greying Population: A Wasted Human Capital or Just a Social Liability? International Labour Organization, 2002.
Style de citation MLA (9e éd.)Spiezia, Vincenzo. The Greying Population: A Wasted Human Capital or Just a Social Liability? International Labour Organization, 2002.
Attention : ces citations peuvent ne pas être correctes à 100%.