Mayer, L. (1812). The crisis: A sermon, preached at Shepherd's-Town, Virginia, on Thursday, August 20, 1812 : the day appointed by the president of the United States, to be observed as a day of humiliation and prayer. Martinsburgh, Va. [i.e. W. Va.]: Printed by John Alburtis.

Mayer, Lewis. The Crisis: A Sermon, Preached At Shepherd's-Town, Virginia, On Thursday, August 20, 1812 : The Day Appointed By the President of the United States, to Be Observed As a Day of Humiliation and Prayer. Martinsburgh, Va. [i.e. W. Va.]: Printed by John Alburtis, 1812.

Mayer, Lewis. The Crisis: A Sermon, Preached At Shepherd's-Town, Virginia, On Thursday, August 20, 1812 : The Day Appointed By the President of the United States, to Be Observed As a Day of Humiliation and Prayer. Martinsburgh, Va. [i.e. W. Va.]: Printed by John Alburtis, 1812.