"Great Lakes (North America)" . . "Great Lakes-St. Lawrence Basin (Canada and United States)" . . . . "Saint Lawrence Seaway." . . "Saint Lawrence River." . . "Saint Lawrence River" . . . "Great Lakes-St. Lawrence Basin : hearings before the Committee on Rivers and Harbors, House of Representatives, Seventy-seventh Congress, first session : on the subject of the improvement of the Great Lakes-St. Lawrence Seaway and power project"@en . "Great Lakes-St. Lawrence basin. Hearings before the Committee on rivers and harbors, House of representatives, Seventy-seventh Congress, first session, on the subject of the improvement of the Great Lakes-St. Lawrence seaway and power project" . . "Great Lakes-St. Lawrence basin : hearings before the Committee on Rivers and Harbors, House of Representatives, Seventy-seventh Congress, first session, on the subject of the improvement of the Great Lakes-St. Lawrence seaway and power project"@en . . . . . . . . . . "Great Lakes-St. Lawrence basin. Hearings before the Committee on Rivers and Harbors, House of Representatives, Seventy-seventh Congress, first session, on the subject of the improvement of the Great Lakes-St. Lawrence seaway and power project"@en . "Great Lakes Saint Lawrence basin"@en . . . . "Great Lakes-St. Lawrence basin Hearings before the Committee on rivers and harbors, House of representatives, Seventy-seventh Congress, first session, on the subject of the improvement of the Great Lakes-St. Lawrence seaway and power project"@en . . . . . . "Great Lakes-St. Lawrence basin hearings before the Committee on Rivers and Harbors, House of Representatives, Seventy-seventh Congress, first session, on the subject of the improvement of the Great Lakes-St. Lawrence seaway and power project"@en . .