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> Walter Arno Wittich
Walter Arno Wittich
A. W.
·
W.A.
·
W.W.
·
Walter A.
title
ISBN-13
(ISBN-10)
year of publication
Instructional Technology, Its Nature and Use
978-0-06-047169-9
(0-06-047169-7)
1979
Instructional technology; its nature and use
978-0-06-047172-9
(0-06-047172-7)
1973
Walter Arnold