"Harcourt Brace & Company." . . "Grade 6." . . "Grade 7." . . . "Harcourt Brace Social Studies"@en . . . . "Ancient civilizations"@en . "Ancient civilizations" . . . . . . . . . . . . . . . . "Set of materials for classroom use in teaching world history and civilization in elementary and middle school."@en . . . . . . . . . . "Juvenile works"@en . . . . . . "Grade 5." . .