Clark, R. L., & Anker, R. (1990). Labour force participation rates of older persons: An international comparison. International Labour Office.
Citazione stile Chigago Style (17a edizione)Clark, Robert L., e Richard Anker. Labour Force Participation Rates of Older Persons: An International Comparison. Geneva: International Labour Office, 1990.
Citatione MLA (9a ed.)Clark, Robert L., e Richard Anker. Labour Force Participation Rates of Older Persons: An International Comparison. International Labour Office, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.