Northern Pacific Railroad Company. (1909). Opportunities: Openings for business locations on the line of the Northern Pacific Railway. C.W. Mott.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Northern Pacific Railroad Company. Opportunities: Openings for Business Locations on the Line of the Northern Pacific Railway. St. Paul, Minn.: C.W. Mott, 1909.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Northern Pacific Railroad Company. Opportunities: Openings for Business Locations on the Line of the Northern Pacific Railway. C.W. Mott, 1909.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.