Sheet 3. (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 3. (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~8~1~298984~90070185. (Accessed December 14, 2018.)
APA citation style
Stanford, Edward, (1877) Sheet 3. (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~8~1~298984~90070185
MLA citation style
Stanford, Edward. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~298984~90070185>.
Note: These citations are programmatically generated and may be incomplete.