Cita APA (7th ed.)

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.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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.