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> Rachel R. Avery
Rachel R. Avery
R. A.
·
R. Avery
·
R.R.
title
ISBN-13
(ISBN-10)
year of publication
Logo and the Apple
978-0-13-539933-0
(0-13-539933-5)
1985
Logo and the IBM PC
978-0-13-539941-5
(0-13-539941-6)
1985
Rachel R. Baum