The Kentucky almanac, for the year of our Lord, 1800: ... Calculated for the latitude of 37$ north, and a meridian of 15$ west of Philadelphia: and will serve, without any sensible variation, for the north-western territory, St. Vincennes, state of Tennessee and the western parts of Virginia.
Chicago Style (17th ed.) CitationThe Kentucky Almanac, for the Year of Our Lord, 1800: ... Calculated for the Latitude of 37$ North, and a Meridian of 15$ West of Philadelphia: And Will Serve, Without Any Sensible Variation, for the North-western Territory, St. Vincennes, State of Tennessee and the Western Parts of Virginia.
MLA (9th ed.) CitationThe Kentucky Almanac, for the Year of Our Lord, 1800: ... Calculated for the Latitude of 37$ North, and a Meridian of 15$ West of Philadelphia: And Will Serve, Without Any Sensible Variation, for the North-western Territory, St. Vincennes, State of Tennessee and the Western Parts of Virginia.