Great Northern Railway Company (U.S.). Public Relations Department. (1955). A condensed history of the Great Northern Railway. Public Relations Dept., Great Northern Railway Co..
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Great Northern Railway Company (U.S.). Public Relations Department. A Condensed History of the Great Northern Railway. St. Paul, Minn.: Public Relations Dept., Great Northern Railway Co., 1955.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Great Northern Railway Company (U.S.). Public Relations Department. A Condensed History of the Great Northern Railway. Public Relations Dept., Great Northern Railway Co., 1955.
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