Full-color photos. Learn about the formation and practical uses of crystals,semiprecious stones, and precious metals. "The dazzling full-color photographson uncluttered pages make this a visual treat."--School Library Journal.
本文的引用網址:
Ancient Egypt /
Tree /
Ancient Rome /
Skeleton /
Reptile /
Fly machine /
Arms & armour /
Rock & mineral /
Seashore /
Dinosaur /
Sport /
Music /
Fossil /
Bird /
Butterfly & moth /