APA (7th ed.) Citation

Briggs, I. Isaac Briggs's almanac; for the year of our Lord, --1799: ... The astronomical part ... is adopted to the latitude and meridian of Philadelphia; but may, without material error, be used in Pennsylvania, New-Jersey and Delaware ..

Chicago Style (17th ed.) Citation

Briggs, Isaac. Isaac Briggs's Almanac; for the Year of Our Lord, --1799: ... The Astronomical Part ... Is Adopted to the Latitude and Meridian of Philadelphia; but May, Without Material Error, Be Used in Pennsylvania, New-Jersey and Delaware ..

MLA (9th ed.) Citation

Briggs, Isaac. Isaac Briggs's Almanac; for the Year of Our Lord, --1799: ... The Astronomical Part ... Is Adopted to the Latitude and Meridian of Philadelphia; but May, Without Material Error, Be Used in Pennsylvania, New-Jersey and Delaware ..