Uses clear and informed text to tell readers what scientists know and what they are still guessing about a collection of odd-looking monsters, including how experts think these dinosaurs used their individual, bizarre characteristics.
Record details
ISBN:1426303319 (lib. ed.)
ISBN:9781426303319 (lib. ed.)
ISBN:1426303300 (trade hbk.)
ISBN:9781426303302 (trade hbk.)
Physical Description:31 p. : col. ill. ; 22 cm. print
Publisher:Washington, D.C. : National Geographic, c2008.