Great Northern Railway Company (U.S.). (1914). Washington: Northern Idaho, British Columbia. Great Northern Railway.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGreat Northern Railway Company (U.S.). Washington: Northern Idaho, British Columbia. [Saint Paul? Minn.: Great Northern Railway, 1914.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGreat Northern Railway Company (U.S.). Washington: Northern Idaho, British Columbia. Great Northern Railway, 1914.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.