International Labor Office. (1986). Economically active population estimates and projections, 1950-2025: Evaluations et projections de la population active, 1950-2025 ([3rd ed.].). International Labour Office.
Цитирование в стиле Чикаго (17-е изд.)International Labor Office. Economically Active Population Estimates and Projections, 1950-2025: Evaluations Et Projections De La Population Active, 1950-2025. [3rd ed.]. Geneva: International Labour Office, 1986.
Цитирование MLA (9-е изд.)International Labor Office. Economically Active Population Estimates and Projections, 1950-2025: Evaluations Et Projections De La Population Active, 1950-2025. [3rd ed.]. International Labour Office, 1986.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.