International standard classification of occupations /

Eitemau Tebyg

• International Standard Classification of Occupations
  gan: International Labour Office
  Cyhoeddwyd: (1949)
• National classification of occupations /
  Cyhoeddwyd: (1969)
• International Labour Migration
  gan: International Labour Office
  Cyhoeddwyd: (2010)
• The Worker`s of Standard of Living
  gan: Internation Labour Office
  Cyhoeddwyd: (1938)
• The international labour code 1951.
  gan: International Labour Office
  Cyhoeddwyd: (1952)