APA Citation
Watt, James,. James Watt, Jr. letter to Robert Francis [that is, Robert Fulton], on behalf of Boulton Watt & Company, dated Birmingham, 25 July 1804. Retrieved from https://library.si.edu/digital-library/book/jameswattjrlett00watt
MLA Citation
Watt, James,. James Watt, Jr. letter to Robert Francis [that is, Robert Fulton], on behalf of Boulton Watt & Company, dated Birmingham, 25 July 1804. https://library.si.edu/digital-library/book/jameswattjrlett00watt
Chicago
Watt, James,. James Watt, Jr. letter to Robert Francis [that is, Robert Fulton], on behalf of Boulton Watt & Company, dated Birmingham, 25 July 1804. https://library.si.edu/digital-library/book/jameswattjrlett00watt
Warning: These citations may not always be complete (especially for serials).