Challoner, R., & O'Reilly, E. (1820). Think well on't; or reflections of the great truths of the Christian religion: For every day in the month (Forty-third edition, corrected.). Dublin: by John Coyne.MLA Citation
Challoner, Richard, and Edward O'Reilly. Think Well On't; or Reflections of the Great Truths of the Christian Religion: For Every Day in the Month. Forty-third edition, corrected. Dublin: by John Coyne, 1820.