Birkett, W. Poor Will's almanack, for the year of Christian account, 1750: ... Calculated from Carline [as printed] tables, according to art, and referred to the vertex of the city of Philadelphia, whose pole is elevated 40 deg. north, and a meridian of 5 hours west from London, but may, without sensible error serve all the provinces adjacent from Newfoundland to South Carolina.
Chicago Style (17th ed.) CitationBirkett, William. Poor Will's Almanack, for the Year of Christian Account, 1750: ... Calculated from Carline [as Printed] Tables, According to Art, and Referred to the Vertex of the City of Philadelphia, Whose Pole Is Elevated 40 Deg. North, and a Meridian of 5 Hours West from London, but May, Without Sensible Error Serve All the Provinces Adjacent from Newfoundland to South Carolina.
MLA (9th ed.) CitationBirkett, William. Poor Will's Almanack, for the Year of Christian Account, 1750: ... Calculated from Carline [as Printed] Tables, According to Art, and Referred to the Vertex of the City of Philadelphia, Whose Pole Is Elevated 40 Deg. North, and a Meridian of 5 Hours West from London, but May, Without Sensible Error Serve All the Provinces Adjacent from Newfoundland to South Carolina.