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Douglas Downing

17 books

333 pages paperback 1986

416 pages paperback 1995

mathematics reference informative lighthearted fast-paced

504 pages 2009

informative lighthearted medium-paced

416 pages paperback 2009

366 pages paperback 1999

informative medium-paced

394 pages paperback 1984

reference informative medium-paced

310 pages paperback

nonfiction education mathematics emotional reflective medium-paced