(1980). Petroleum committee: Nine session, Geneva, 1980: Working conditions and working environment in the petroleum industry, including offshore activities. Geneva, Switzerland: International Labour Office.
शिकागो स्टाइल उद्धरणPetroleum Committee: Nine Session, Geneva, 1980: Working Conditions and Working Environment in the Petroleum Industry, Including Offshore Activities. Geneva, Switzerland: International Labour Office, 1980.
एमएलए उद्धरणPetroleum Committee: Nine Session, Geneva, 1980: Working Conditions and Working Environment in the Petroleum Industry, Including Offshore Activities. Geneva, Switzerland: International Labour Office, 1980.
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