Search Results       Your search for [subject]Oil well drilling rigs -- Congresses returned 1 record.           Off-shore structures : proceedings of the conference held in London, 7-8 October 1974 _ Conference. London: The Institution of Civil Engineers, 1975. Subject: Offshore structures; Offshore oil well drilling -- Congresses; Oil well drilling rigs -- Congresses; Natural gas in submerged lands -- Congresses.          Add to Book Cart Relevance: 44.10%