Rydell, Wendy. Discovering fossils / [electronic resource] / by Wendy Rydell ; illustrated by Ray Burns.. — Mahwah, N.J. : : Troll Associates,, c1984.. — 32 p. : : ill. ; 27 cm. - The Question & answer book.
Анотація: Answers questions about the frozen, petrified, molded, imprinted, or otherwise preserved remains of prehistoric life forms which guide scientists in their study of early plants and animals.