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Current edition
32 pages • first pub 1969 (editions)
ISBN/UID: 9780020449706
Format: Paperback
Language: English
Publisher: MacMillan Publishing Company
Publication date: 28 October 1969
nonfiction
childrens
computer science
medium-paced
nonfiction
childrens
computer science
medium-paced
32 pages • first pub 1969 (editions)
ISBN/UID: 9780020449706
Format: Paperback
Language: English
Publisher: MacMillan Publishing Company
Publication date: 28 October 1969
nonfiction
childrens
computer science
medium-paced
nonfiction
childrens
computer science
medium-paced
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