B&O Railroad Class A-B Locomotive (4-6-0)

Chicago citation style
Baltimore and Ohio Railroad Company. B&O Railroad Class A-B Locomotive (4-6-0). undated. Retrieved from the Digital Public Library of America, http://collections.digitalmaryland.org/cdm/ref/collection/bomu/id/3. (Accessed May 24, 2018.)
APA citation style
Baltimore and Ohio Railroad Company, (undated) B&O Railroad Class A-B Locomotive (4-6-0). Retrieved from the Digital Public Library of America, http://collections.digitalmaryland.org/cdm/ref/collection/bomu/id/3
MLA citation style
Baltimore and Ohio Railroad Company. Retrieved from the Digital Public Library of America <http://collections.digitalmaryland.org/cdm/ref/collection/bomu/id/3>.
Note: These citations are programmatically generated and may be incomplete.