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George F. Sandstrom

4 books

160 pages 1962

nonfiction nature reference science informative slow-paced

280 pages paperback

nonfiction reference informative medium-paced

280 pages hardcover 1968

nonfiction reference science informative lighthearted reflective medium-paced

160 pages paperback 1962

nonfiction nature reference informative lighthearted medium-paced