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Robert E. Wells

20 books

32 pages 2000

nonfiction mathematics science informative lighthearted slow-paced

32 pages 2002

nonfiction childrens science informative medium-paced

32 pages 1996

nonfiction science informative medium-paced

32 pages 1993

nonfiction mathematics science informative lighthearted slow-paced

32 pages 2008

nonfiction childrens science informative medium-paced

32 pages 2004

nonfiction childrens science informative medium-paced

32 pages 1995

nonfiction childrens science informative medium-paced

32 pages 2009

nonfiction science adventurous medium-paced

32 pages paperback

nonfiction childrens nature science informative medium-paced

32 pages hardcover

nonfiction childrens informative medium-paced