Franklin, B. (1787). Observations on the causes and cure of smoky chimneys: By His Excellency Benjamin Frankin, LLD. F.R.S, president of the state of Pennsylvania, and of the American Philosophical Society, &c. in a letter to Dr. Ingen-Housz, physician to the emperor, at Vienna. Illustrated by a copper-plate (The second edition.). Philadelphia printed: London: re-printed for John Debrett, opposite Burlington-House, in Piccadilly; and J. Sewell, in Cornhill.
Chicago Style (17th ed.) CitationFranklin, Benjamin. Observations on the Causes and Cure of Smoky Chimneys: By His Excellency Benjamin Frankin, LLD. F.R.S, President of the State of Pennsylvania, and of the American Philosophical Society, &c. in a Letter to Dr. Ingen-Housz, Physician to the Emperor, at Vienna. Illustrated by a Copper-plate. The second edition. [London]: Philadelphia printed: London: re-printed for John Debrett, opposite Burlington-House, in Piccadilly; and J. Sewell, in Cornhill, 1787.
MLA (9th ed.) CitationFranklin, Benjamin. Observations on the Causes and Cure of Smoky Chimneys: By His Excellency Benjamin Frankin, LLD. F.R.S, President of the State of Pennsylvania, and of the American Philosophical Society, &c. in a Letter to Dr. Ingen-Housz, Physician to the Emperor, at Vienna. Illustrated by a Copper-plate. The second edition. Philadelphia printed: London: re-printed for John Debrett, opposite Burlington-House, in Piccadilly; and J. Sewell, in Cornhill, 1787.