APA aipamena

International Labor Office. Petroleum Committee & International Labor Organization. (1972). Social problems of contract, sub-contract and casual labour in the petroleum industry. Second item on the agenda.

Chicago Style aipamena

International Labor Office. Petroleum Committee and International Labor Organization. Social Problems of Contract, Sub-contract and Casual Labour in the Petroleum Industry. Second Item on the Agenda. Geneva, 1972.

MLA aipamena

International Labor Office. Petroleum Committee and International Labor Organization. Social Problems of Contract, Sub-contract and Casual Labour in the Petroleum Industry. Second Item on the Agenda. 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.