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282 pages first pub 1974 (editions)

nonfiction nature reference informative medium-paced
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missing page info first pub 1974 (editions)

nonfiction nature reference informative medium-paced

256 pages first pub 1974 (editions)

nonfiction nature reference informative medium-paced

256 pages first pub 1974 (editions)

nonfiction nature reference informative medium-paced