(1980). Petroleum committee: Nine session, Geneva, 1980 :,The training of nationals as technicians and workers in the petroleum industry of developing countries, including continuous training and retraining in the light of technological progress. Geneva, Switzerland: International Labour Office.
Trích dẫn kiểu ChicagoPetroleum Committee: Nine Session, Geneva, 1980 :,The Training of Nationals As Technicians and Workers in the Petroleum Industry of Developing Countries, Including Continuous Training and Retraining in the Light of Technological Progress. Geneva, Switzerland: International Labour Office, 1980.
Deismireacht MLAPetroleum Committee: Nine Session, Geneva, 1980 :,The Training of Nationals As Technicians and Workers in the Petroleum Industry of Developing Countries, Including Continuous Training and Retraining in the Light of Technological Progress. Geneva, Switzerland: International Labour Office, 1980.