Shoemaker, A., Sherman, G., Mershon, J., & Thomas, I. (1800). The New-Jersey and Pennsylvania almanac, for the year 1801.: ... Calculated for the latitude and meridian of Philadelphia. Trenton:: Printed and sold, wholesale and retail, by Sherman, Mershon & Thomas..

Shoemaker, Abraham., George Sherman, John Mershon, and Isaiah Thomas. The New-Jersey and Pennsylvania Almanac, for the Year 1801.: ... Calculated for the Latitude and Meridian of Philadelphia. Trenton:: Printed and sold, wholesale and retail, by Sherman, Mershon & Thomas., 1800.

Shoemaker, Abraham., George Sherman, John Mershon, and Isaiah Thomas. The New-Jersey and Pennsylvania Almanac, for the Year 1801.: ... Calculated for the Latitude and Meridian of Philadelphia. Trenton:: Printed and sold, wholesale and retail, by Sherman, Mershon & Thomas., 1800.