圖書名稱:Park Scientists: Gila Monsters, Geysers, and Grizzly Bears in America’s Own Backyard
內容簡介
The national parks have been called "America's best idea," and in this book, kids can meet up with scientists studying geysers, grizzlies, salamanders, cacti and fireflies in some of America's most treasured places. 20,000 first printing.