International Labor Office. (1952). International classification of occupations for migration and employment placement. s.n.
Citación estilo ChicagoInternational Labor Office. International Classification of Occupations for Migration and Employment Placement. Geneva: s.n, 1952.
Cita MLAInternational Labor Office. International Classification of Occupations for Migration and Employment Placement. s.n, 1952.
Warning: These citations may not always be 100% accurate.