Showing 1 - 4 results of 4 for search 'Summers, George J.', query time: 0.01s Refine Results
1
Test your logic : 50 puzzles in deductive reasoning /
Book
2
New Puzzles in Logical Deduction
by Summers, George J.
Published 1968
Book
3
New puzzles in logical deduction /
by Summers, George J.
Published 1968
Book
4
Test your logic: 50 puzzles in deductive reasoning /
by Summers, George J.
Published 1972
Book
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