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The visual discrimination of geometric forms

Author: Casperson, Roland Carl
Published: [Place of publication not identified] : [publisher not identified], 1950.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1950.
Physical Description: microopaque : positive ; 8 x 13 cm

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Report Numbers: U-14904
Collection: U.S. Atomic Energy Commission depository collection.

View MARC record | catkey: 42549746