United States of America / engrav'd by J. Warr Jr., No. 110 Walnut St. Philada.
MLA
[S.l. : s.n.]. "United States of America / engrav'd by J. Warr Jr., No. 110 Walnut St. Philada.." Hargrett Library. 1820/1840, https://dlg.usg.edu/record/guan_hmap_hmap1827u5#item.
APA
[S.l. : s.n.] (1820/1840). United States of America / engrav'd by J. Warr Jr., No. 110 Walnut St. Philada.. Retrieved from https://dlg.usg.edu/record/guan_hmap_hmap1827u5#item
Chicago
[S.l. : s.n.]. "United States of America / engrav'd by J. Warr Jr., No. 110 Walnut St. Philada.." 1820/1840. August 24, 2025. https://dlg.usg.edu/record/guan_hmap_hmap1827u5#item.
