9780387978543 | Springer Verlag, July 1, 1993, cover price $99.00

9781461573838 | Springer Verlag, March 6, 2013, cover price $99.00

9780374278809 | Farrar Straus & Giroux, January 1, 2002, cover price $26.00 | About this edition: A paleontologist presents an account of how his childhood ferver for dinosaurs became a lifelong commitment to cutting-edge science, documenting his many adventures, from Los Angeles to the rich fossil badlands of the Gobi desert.

9780374528768 | Reprint edition (Farrar Straus & Giroux, March 15, 2003), cover price $25.00 | About this edition: An internationally acclaimed paleontologist, who has unearthed significant fossils on almost every continent, presents a compelling account of how his childhood fervor for dinosaurs became a lifelong commitment to cutting-edge science, documenting his many adventures, from Los Angeles to the rich fossil badlands of the Gobi desert.

9781565845701 | New Pr, March 1, 2001, cover price $19.95 | About this edition: Explores the potential mass extinction currently threatening Earth's natural world, as human activity endangers many species' natural habitats and menaces the rich variety and interdependence of all living things on the planet.

9780061053627, titled "Wizard 1997 Yearbook & Comic" | Harpercollins, March 1, 2000, cover price $17.00 | also contains Wizard 1997 Yearbook & Comic

9780387978536 | Springer Verlag, July 1, 1993, cover price $99.00

9780387976761 | Springer Verlag, July 1, 1993, cover price $185.00 | About this edition: The roots of this book and its sister volume, Mammal Phylogeny: Placenta/so go back to discussions and plans, shelved for a while, between F.

9780231074384 | Columbia Univ Pr, June 1, 1992, cover price $85.00 | About this edition: -- Joel Cracaft, University of Illinois at Chicago