Landau, Elaine
Apatosaurus. - New York, NY : Scholastic, 2007. - 48 - A True Book .
978-0-531-16799-1
Apatosaurus - Juvenile literature
Apatosaurus. - New York, NY : Scholastic, 2007. - 48 - A True Book .
978-0-531-16799-1
Apatosaurus - Juvenile literature