توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Kennedy, W., Cobban, W., & Landman, N. (2001). A revision of the turonian members of the ammonite subfamily collignoniceratinae from the United States western interior and gulf coast.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Kennedy, W., W. Cobban, و N. Landman. A Revision of the Turonian Members of the Ammonite Subfamily Collignoniceratinae from the United States Western Interior and Gulf Coast. 2001.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Kennedy, W., et al. A Revision of the Turonian Members of the Ammonite Subfamily Collignoniceratinae from the United States Western Interior and Gulf Coast. 2001.