1. All About Cretaceous Period and Events Author Carter, Aliya and Carter, Aliya Subjects Geology, Stratigraphic--Cretaceous, Paleontology--Cretaceous, Cretaceous-Paleogene boundary Abstract Chapter 1 - Asteroid Chapter 2 - Asteroid Belt Chapter 3 - Asteroid Groups and Asteroid Family Chapter 4 - Near-Earth Object Chapter 5 - 99942 Apophis Chapter 6 - 4 Vesta Chapter 7 - Asteroid Impact Avoidance Published 2012
2. Dinosaur Extinction and the End of an Era : What the Fossils Say Author Archibald, J. David and Archibald, J. David Subjects Cretaceous-Paleogene boundary, Extinction (Biology) Published 1996