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164 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced
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176 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

224 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

164 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

211 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

211 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

170 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

268 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

224 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced

156 pages first pub 1999 (editions)

nonfiction education mathematics science funny informative lighthearted medium-paced