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missing page info first pub 1989 (editions)

nonfiction history reference science informative medium-paced
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674 pages first pub 1989 (editions)

nonfiction history reference science informative medium-paced

800 pages first pub 1989 (editions)

nonfiction history reference science informative medium-paced

791 pages first pub 1989 (editions)

nonfiction history reference science informative medium-paced

767 pages first pub 1989 (editions)

nonfiction history reference science informative medium-paced