Directory to the iron and steel works of the United States

Chicago citation style
American Iron and Steel Association. Directory to the iron and steel works of the United States. 1873-1908. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/000528327. (Accessed September 21, 2018.)
APA citation style
American Iron and Steel Association, (1873-1908) Directory to the iron and steel works of the United States. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/000528327
MLA citation style
American Iron and Steel Association. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/000528327>.
Note: These citations are programmatically generated and may be incomplete.