SCIENCES AND HUMANITIES) 河內越南國家大學所屬科技學院(VIETNAM NATIONAL UNIVERSITY, THE COLLEGE OF TECHNOLOGY) 交通運輸大學(英语:UniversityofTransportandCommunications)(HO CHI
Jean-Paul. The Geography ofTransport Systems. New York: Routledge. [2015-11-22]. (原始内容存档于2018-02-17). U.S. Railroad Route Miles and Revenue. Rail Serve.