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Incoming Resources
- The California gold rush,, by the editors of American heritage. Narrative by Ralph K. Andrist, in consultation with Archibald Hanna
- Heroes of polar exploration,, by the editors of Horizon magazine. Author: Ralph K. Andrist in consultation with George J. Dufek
- The Erie Canal,, by the editors of American heritage. Author: Ralph K. Andrist. Consultant: Carter Goodrich
- Steamboats on the Mississippi,, by the editors of American heritage. Narrative by Ralph K. Andrist, in consultation with C. Bradford Mitchell