Cite

Rome and its environs : from a trigonometrical survey / by Sir William Gell, M.A., F.R.S., &c. ; engraved by J. Gardner.

MLA

Gell, William, Sir, 1777-1836. Rome and its environs : from a trigonometrical survey / by Sir William Gell, M.A., F.R.S., &c. ; engraved by J. Gardner.. BRBL_00216. Septr. 1834.. https://collections.library.yale.edu/catalog/15493197.

APA, 6th edition

Gell, William, Sir, 1777-1836. (["BRBL_00216"])(Septr. 1834.)[Rome and its environs : from a trigonometrical survey / by Sir William Gell, M.A., F.R.S., &c. ; engraved by J. Gardner.]. https://collections.library.yale.edu/catalog/15493197.