Association of American Railroads. Railroad Committee for the Study of Transportation. (1941). Report on coordination. s.n..
Chicago-referens (17:e uppl.)Association of American Railroads. Railroad Committee for the Study of Transportation. Report on Coordination. [S.l.: s.n., 1941.
MLA-referens (8:e uppl.)Association of American Railroads. Railroad Committee for the Study of Transportation. Report on Coordination. s.n., 1941.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.