railroadとrailwayの使い分け [脚注の使い方] ^ Altamont Press (February 6 2006), NorthDakota gets a new railroad: BNSF sheds more area branch lines. Retrieved February
Astronomical Observatory, Winnipeg 地図 730 University of NorthDakota, Grand Forks ND University of NorthDakota, Grand Forks 地図 731 Rose-Hulman Observatory IN