Sheet 15. (Stanford's Library Map of London and it's Suburbs.)Stanford's Library Map of London and Its Suburbs. 24 Sheets. On the Scale of Six Inches to a Mile. London: Edward Stanford, 55, Charing Cross, S.W

Chicago citation style
Stanford, Edward. Sheet 15. (Stanford's Library Map of London and it's Suburbs.),Stanford's Library Map of London and Its Suburbs. 24 Sheets. On the Scale of Six Inches to a Mile. London: Edward Stanford, 55, Charing Cross, S.W. 1877. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~298996~90070173. (Accessed December 15, 2018.)
APA citation style
Stanford, Edward, (1877) Sheet 15. (Stanford's Library Map of London and it's Suburbs.),Stanford's Library Map of London and Its Suburbs. 24 Sheets. On the Scale of Six Inches to a Mile. London: Edward Stanford, 55, Charing Cross, S.W. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~298996~90070173
MLA citation style
Stanford, Edward. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~298996~90070173>.
Note: These citations are programmatically generated and may be incomplete.