Blair, S. (1798). A discourse delivered in the First Presbyterian Church of Philadelphia, on Wednesday, May 9th, 1798, recommended by the President of the United States to be observed as a day of fasting, humiliation, and prayer, throughout the United States of North America. Philadelphia: James Watters, & Co.; to be had also of the principal booksellers.

Blair, Samuel. A Discourse Delivered in the First Presbyterian Church of Philadelphia, On Wednesday, May 9th, 1798, Recommended By the President of the United States to Be Observed As a Day of Fasting, Humiliation, and Prayer, Throughout the United States of North America. Philadelphia: James Watters, & Co.; to be had also of the principal booksellers, 1798.

Blair, Samuel. A Discourse Delivered in the First Presbyterian Church of Philadelphia, On Wednesday, May 9th, 1798, Recommended By the President of the United States to Be Observed As a Day of Fasting, Humiliation, and Prayer, Throughout the United States of North America. Philadelphia: James Watters, & Co.; to be had also of the principal booksellers, 1798.