APA Citation
Marconi, Guglielmo,. Guglielmo Marconi letter to Giuseppe Marconi, his father, dated London, 21 March 1896. Retrieved from https://library.si.edu/digital-library/book/guglielmomarcon00marca
MLA Citation
Marconi, Guglielmo,. Guglielmo Marconi letter to Giuseppe Marconi, his father, dated London, 21 March 1896. https://library.si.edu/digital-library/book/guglielmomarcon00marca
Chicago
Marconi, Guglielmo,. Guglielmo Marconi letter to Giuseppe Marconi, his father, dated London, 21 March 1896. https://library.si.edu/digital-library/book/guglielmomarcon00marca
Warning: These citations may not always be complete (especially for serials).