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Guglielmo Marconi : the story of radio and how it made the world a smaller place /
by Birch, Beverley.
Publication:
Toronto : Irwin Pub., 1990
. 64 p. :
, On cover: Radio communications.
22 cm.
Date:1990
Availability:
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(1),
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Isaac Newton /
by White, Michael.
Publication:
Toronto : Irwin Pub., 1990
. 64 p. :
22 cm.
Date:1990
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(1),
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The Wright brothers : the story of the struggle to build and fly the first successful aeroplane /
by Sproule, Anna.
Publication:
Toronto : Irwin Pub., 1991
. 64 p. :
22 cm.
Date:1991
Availability:
Copies available:
(1),
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