توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Ennis, J. (1852). Address delivered before the Philomathian Society at the annual commencement of Mount Saint Mary's College, Emmittsburg, Frederick County, Md., on June 30, 1852. Baltimore.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ennis, John. Address Delivered Before the Philomathian Society at the Annual Commencement of Mount Saint Mary's College, Emmittsburg, Frederick County, Md., on June 30, 1852. Baltimore, 1852.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Ennis, John. Address Delivered Before the Philomathian Society at the Annual Commencement of Mount Saint Mary's College, Emmittsburg, Frederick County, Md., on June 30, 1852. Baltimore, 1852.