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Experimenting with illusions /
by Gardner, Robert,
Publication:
New York : F. Watts, 1990
. p. cm.
Date:1990
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You won't believe your eyes!
by O'Neill, Catherine,
Publication:
Washington, D.C. : National Geographic Society, 1987
. 104 p. :
, Includes index.
28 cm.
Date:1987
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