Joining the tracks for the first transcontinental railroad, Promontory, Utah, Terr., 1869

Chicago citation style
Department of Commerce. Bureau of Public Roads. 8/20/1949-4/1/1967. Joining the tracks for the first transcontinental railroad, Promontory, Utah, Terr., 1869. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/513341. (Accessed September 20, 2018.)
APA citation style
Department of Commerce. Bureau of Public Roads. 8/20/1949-4/1/1967, Joining the tracks for the first transcontinental railroad, Promontory, Utah, Terr., 1869. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/513341
MLA citation style
Department of Commerce. Bureau of Public Roads. 8/20/1949-4/1/1967. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/513341>.
Note: These citations are programmatically generated and may be incomplete.