APA (7th ed.) Citation

Porter, E. A discourse, delivered at Brookline, in the morning, and at the First Parish in Roxbury, in the afternoon, of the 9th of May, 1798: Being the day recommended by John Adams, president of the United States, for solemn humiliation, fasting & prayer, throughout the union.

Chicago Style (17th ed.) Citation

Porter, Eliphalet. A Discourse, Delivered at Brookline, in the Morning, and at the First Parish in Roxbury, in the Afternoon, of the 9th of May, 1798: Being the Day Recommended by John Adams, President of the United States, for Solemn Humiliation, Fasting & Prayer, Throughout the Union.

MLA (9th ed.) Citation

Porter, Eliphalet. A Discourse, Delivered at Brookline, in the Morning, and at the First Parish in Roxbury, in the Afternoon, of the 9th of May, 1798: Being the Day Recommended by John Adams, President of the United States, for Solemn Humiliation, Fasting & Prayer, Throughout the Union.

Warning: These citations may not always be 100% accurate.