Landau, Elaine
Triceratops. - New York, NY : Scholastic, 2007. - 48 - A True Book .
978-0-531-16831-8
Triceratops - Juvenile literature
Triceratops. - New York, NY : Scholastic, 2007. - 48 - A True Book .
978-0-531-16831-8
Triceratops - Juvenile literature