Explorers and Discoverers

["Juvenile Encyclopedias" "Biography" "Discoveries in geography" "Explorers" "Travelers" "Explorers -- Biography -- Encyclopedias Juvenile" "Discoveries in geography -- Encyclopedias Juvenile" "Travelers -- Biography -- Encyclopedias Juvenile" "Geographical discovery & exploration" "Historical figures" "Juvenile Nonfiction" "Children: Young Adult (Gr. 7-9)" "Biography & Autobiography - Historical" "Children's Books/Ages 9-12 Biography" "History - General" "Reference - General" "Social Sciences" "Biography & Autobiography - General" "Encyclopedias Juvenile"]