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Andrew Christensen

10 books

332 pages 1999

nonfiction psychology self help informative slow-paced

348 pages paperback

nonfiction health psychology informative medium-paced

122 pages paperback

nonfiction childrens nature science informative medium-paced

336 pages 1998

nonfiction psychology challenging informative slow-paced

572 pages paperback

nonfiction psychology

128 pages hardcover

nonfiction childrens technology

416 pages paperback

nonfiction psychology medium-paced

283 pages hardcover 1996

informative medium-paced

missing duration info audio 1999

369 pages digital 1999