Kennedy, W., & Jagt, J. (1998). Additional late Cretaceous ammonite records from the Maastrichtian type area.
Cita Chicago (17th ed.)Kennedy, W., i J. Jagt. Additional Late Cretaceous Ammonite Records from the Maastrichtian Type Area. 1998.
Cita MLA (9th ed.)Kennedy, W., i J. Jagt. Additional Late Cretaceous Ammonite Records from the Maastrichtian Type Area. 1998.
Atenció: Aquestes cites poden no estar 100% correctes.