Abercrombie, J., & Ormrod, J. (1798). A sermon, preached in Christ Church and St. Peter's, Philadelphia : on Wednesday, May 9, 1798.: Being the day appointed by the President, as a day of fasting, humiliation, and prayer, throughout the United States of North America. Philadelphia:: Printed by John Ormrod, no. 41, Chesnut-Street..

Abercrombie, James, and John Ormrod. A Sermon, Preached in Christ Church and St. Peter's, Philadelphia : On Wednesday, May 9, 1798.: Being the Day Appointed By the President, As a Day of Fasting, Humiliation, and Prayer, Throughout the United States of North America. Philadelphia:: Printed by John Ormrod, no. 41, Chesnut-Street., 1798.

Abercrombie, James, and John Ormrod. A Sermon, Preached in Christ Church and St. Peter's, Philadelphia : On Wednesday, May 9, 1798.: Being the Day Appointed By the President, As a Day of Fasting, Humiliation, and Prayer, Throughout the United States of North America. Philadelphia:: Printed by John Ormrod, no. 41, Chesnut-Street., 1798.