Ross, Michael
Exploring the Earth / Michael Ross. - USA : Carolrhoda Books, Inc, 2000. - 48pgs.
A biography of the Geologists who mapped the Grand Canyon and the Colorado River.
1-57505-254-7
Powell, John Wesley
Geologists-Juvenile Literature
Exploring the Earth / Michael Ross. - USA : Carolrhoda Books, Inc, 2000. - 48pgs.
A biography of the Geologists who mapped the Grand Canyon and the Colorado River.
1-57505-254-7
Powell, John Wesley
Geologists-Juvenile Literature