Plan of the harbour and fortifications of Louisbourg. The harbour survey'd by Capt. Phi: Durell; the town by Iohn Henry Bastide Engineer for Nova Scotia.
MLA
Plan of the Harbour and Fortifications of Louisbourg. The Harbour Survey'd by Capt. Phi: Durell; the Town by Iohn Henry Bastide Engineer for Nova Scotia. 0AD. https://collections.library.yale.edu/catalog/15826750.
APA, 6th edition
Plan of the harbour and fortifications of Louisbourg. The harbour survey'd by Capt. Phi: Durell; the town by Iohn Henry Bastide Engineer for Nova Scotia. (0 C.E.). [Manuscript maps]. https://collections.library.yale.edu/catalog/15826750.