Cite
MLA
Map of Dorchester. S.l.: Dorchester Board of Trade, [1920]. Web. 27 May 2022. <https://ark.digitalcommonwealth.org/ark:/50959/9s161f273>.
APA
Map of Dorchester [Map]. ([1920]). Retrieved from https://ark.digitalcommonwealth.org/ark:/50959/9s161f273
Chicago
"Map of Dorchester." Map. S.l.: Dorchester Board of Trade, [1920]. Digital Commonwealth, https://ark.digitalcommonwealth.org/ark:/50959/9s161f273 (accessed May 27, 2022).