Cite This Item
MLA
Geological Survey (U.S.). Topographic Maps of the Petersham Quads. 1927. Web. 19 May 2024. <https://ark.digitalcommonwealth.org/ark:/50959/qv33tb31c>.
APA
Geological Survey (U.S.). (1927). Topographic Maps of the Petersham Quads [Map]. Retrieved from https://ark.digitalcommonwealth.org/ark:/50959/qv33tb31c
Chicago
Geological Survey (U.S.). "Topographic Maps of the Petersham Quads." Map. 1927. Digital Commonwealth, https://ark.digitalcommonwealth.org/ark:/50959/qv33tb31c (accessed May 19, 2024).