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656 pages paperback 1989

nonfiction science informative medium-paced
Other editions (4)
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648 pages 1989

nonfiction science informative medium-paced

570 pages 1989

nonfiction science informative medium-paced

547 pages paperback 1989

nonfiction science informative medium-paced

750 pages hardcover 1987

nonfiction science informative medium-paced