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The oil situation in the Northeast and Great Lakes regions hearings, Ninety-first Congress, second session
- "The oil situation in the Northeast and Great Lakes regions : Hearings, Ninety-first Congress, second session"
- "The oil situation in the Northeast and Great Lakes regions: hearings, Ninety-first Congress, second session, Septmember 22, 23, 24, and 25, 1970"
- "The oil situation in the Northeast and Great Lakes regions hearings, Ninety-first Congress, second session"@en
- "The oil situation in the Northeast and Great Lakes regions hearings, Ninety-first Congress, second session, Septmember 22, 23, 24, and 25, 1970"@en